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  Plantae

      Charophyta

        Streptophytina

            Equisetopsida

              Magnoliidae

                    Lamiales

                            Plantaginaceae

                                   [Callitrichaceae]

                                     Amphianthus

                                             Amphianthus pusillus

                                     Angelonia

                                             Angelonia angustifolia

                                             Angelonia campestris

                                             Angelonia gardneri

                                             Angelonia parviflora

                                             Angelonia perennis

                                                   [Angelonia micrantha var. perennis]

                                             Angelonia salicariifolia

                              Antirrhinoideae

                                     Lophospermum

                                             Lophospermum erubescens

                                             Lophospermum purpusii

                                                   [Maurandya purpusii]

                                     Rhodochiton

                                             Rhodochiton atrosanguineus

                                                   [Lophospermum atrosanguineum]

                                     Antirrhinum

                                             Antirrhinum majus

                                             Antirrhinum speciosum

                                     Asarina

                                     Bacopa

                                           [Caconapea]

                                           [Hydrotrida]

                                           [Monocardia]

                                           [Naiadothrix]

                                             Bacopa albida

                                                   [Monocardia albida]

                                             Bacopa angulata

                                                   [Herpestis angulata]

                                             Bacopa aquatica

                                                   [Bacopa grandiflora]

                                                   [Herpestis bacopoides]

                                                   [Herpestis stellarioides var. pumila]

                                                   [Herpestis stellarioides]

                                             Bacopa arenaria

                                                   [Herpestis arenaria]

                                             Bacopa axillaris

                                                   [Caconapea appressa]

                                                   [Herpestis axillaris]

                                             Bacopa braunii

                                                   [Hydranthelium braunii]

                                             Bacopa caroliniana

                                                   [Hydrotrida caroliniana]

                                             Bacopa cochlearia

                                                   [Herpestis cochlearia]

                                             Bacopa congesta

                                             Bacopa debilis

                                                   [Caconapea debilis]

                                             Bacopa decumbens

                                                   [Herpestis decumbens]

                                             Bacopa dubia

                                             Bacopa egensis

                                             Bacopa eisenii

                                             Bacopa gracilis

                                                   [Herpestis gracilis]

                                             Bacopa gratioloides

                                                   [Caconapea gratioloides]

                                             Bacopa hirsuta

                                                   [Bacopa congesta var. hirsuta]

                                             Bacopa imbricata

                                                   [Herpestis imbricata]

                                             Bacopa innominata

                                                   [Bacopa cyclophylla]

                                                   [Bacopa stragula]

                                                   [Herpestis rotundifolia]

                                             Bacopa lacertosa

                                             Bacopa lanigera

                                                   [Herpestis lanigera]

                                                   [Herpestis marginata]

                                             Bacopa laxiflora

                                                   [Herpestis laxiflora]

                                             Bacopa longipes

                                                   [Naiadothrix longipes]

                                             Bacopa monnieri

                                                   [Bramia monnieri]

                                                   [Lysimachia monnieri]

                                             Bacopa myriophylloides

                                                   [Herpestis myriophylloides]

                                             Bacopa paraguariensis

                                                   [Herpestis paraguariensis]

                                             Bacopa reflexa

                                                   [Herpestis reflexa]

                                             Bacopa repens

                                                   [Gratiola repens]

                                                   [Herpestis obovata]

                                                   [Macuillamia limosa]

                                                   [Macuillamia obovata]

                                                   [Macuillamia repens]

                                             Bacopa reptans

                                                   [Herpestis reptans]

                                             Bacopa rotundifolia

                                                   [Bacopa nobsiana]

                                                   [Bacopa simulans]

                                                   [Bramia rotundifolia]

                                                   [Hydranthelium rotundifolium]

                                                   [Macuillamia rotundifolia]

                                             Bacopa salzmannii

                                                   [Herpestis salzmannii]

                                                   [Monocardia humilis]

                                                   [Monocardia lilacina]

                                                   [Monocardia violacea]

                                             Bacopa scabra

                                                   [Bacopa hassleriana]

                                                   [Bacopa rojasii]

                                                   [Herpestis scabra]

                                             Bacopa serpyllifolia

                                                   [Herpestis serpyllifolia]

                                             Bacopa sessiliflora

                                                   [Caconapea conferta]

                                                   [Herpestis acuta]

                                                   [Herpestis sessiliflora]

                                             Bacopa stemodioides

                                                   [Caconapea stemodioides]

                                             Bacopa stricta

                                                   [Herpestis elongata]

                                                   [Herpestis polyantha]

                                                   [Herpestis stricta]

                                             Bacopa verticillata

                                                   [Caconapea verticillata]

                                     Benjaminia

                                             Benjaminia reflexa

                                     Besseya

                                             Besseya alpina

                                                   [Synthyris alpina]

                                             Besseya arizonica

                                             Besseya bullii

                                                   [Synthyris bullii]

                                                   [Wulfenia bullii]

                                             Besseya oblongifolia

                                             Besseya plantaginea

                                             Besseya ritteriana

                                                   [Synthyris ritteriana]

                                             Besseya rubra

                                                   [Synthyris rubra]

                                             Besseya wyomingensis

                                                   [Besseya cinerea]

                                     Bramia

                                     Callitriche

                                             Callitriche antarctica

                                             Callitriche brutia

                                             Callitriche cophocarpa

                                             Callitriche fassettii

                                             Callitriche hamulata

                                             Callitriche hermaphroditica

                                                   [Callitriche autumnalis]

                                             Callitriche heterophylla

                                               Callitriche heterophylla var. bolanderi

                                               Callitriche heterophylla var. heterophylla

                                               Callitriche heterophylla ssp. bolanderi

                                                     [Callitriche bolanderi]

                                               Callitriche heterophylla ssp. heterophylla

                                                     [Callitriche anceps]

                                             Callitriche intermedia

                                             Callitriche linearis

                                             Callitriche longipedunculata

                                             Callitriche marginata

                                                   [Callitriche sepulta]

                                             Callitriche muelleri

                                             Callitriche palustris

                                                   [Callitriche verna]

                                               Callitriche palustris var. verna

                                             Callitriche pedunculosa

                                                   [Callitriche nuttallii]

                                             Callitriche peploides

                                               Callitriche peploides var. semialata

                                             Callitriche petriei

                                             Callitriche platycarpa

                                             Callitriche stagnalis

                                             Callitriche terrestris

                                                   [Callitriche austinii]

                                                   [Callitriche deflexa var. austinii]

                                                   [Callitriche deflexa var. deflexa]

                                                   [Callitriche deflexa var. subsessilis]

                                                   [Callitriche deflexa]

                                             Callitriche trochlearis

                                             Callitriche turfosa

                              Callitrichoideae

                                     Capraria

                                             Capraria biflora

                                                   [Capraria biflora f. hirta]

                                                   [Capraria hirsuta]

                                                   [Capraria lanceolata]

                                                   [Capraria mexicana]

                                             Capraria frutescens

                                                   [Erinus frutescens]

                                     Chaenorhinum

                                             Chaenorhinum minus

                                             Chaenorhinum rubrifolium

                                     Chelone

                                             Chelone cuthbertii

                                                   [Chelone grimesii]

                                             Chelone glabra

                                                   [Chelone chlorantha]

                                                   [Chelone glabra var. lanceolata]

                                                   [Chelone montana]

                                                   Chelone glabra f. rosea

                                               Chelone glabra var. chlorantha

                                               Chelone glabra var. dilatata

                                               Chelone glabra var. elatior

                                               Chelone glabra var. elongata

                                               Chelone glabra var. linifolia

                                               Chelone glabra var. ochroleuca

                                               Chelone glabra var. typica

                                             Chelone latifolia

                                             Chelone lyonii

                                             Chelone nemorosa

                                             Chelone obliqua

                                               Chelone obliqua var. erwiniae

                                               Chelone obliqua var. obliqua

                                               Chelone obliqua var. speciosa

                              Chelonoideae

                                     Chionophila

                                             Chionophila jamesii

                                             Chionophila tweedyi

                                     Collinsia

                                             Collinsia barbata

                                             Collinsia bartsiifolia

                                               Collinsia bartsiifolia var. bartsiifolia

                                               Collinsia bartsiifolia var. davidsonii

                                                     [Collinsia davidsonii]

                                               Collinsia bartsiifolia var. hirsuta

                                               Collinsia bartsiifolia var. stricta

                                                     [Collinsia stricta]

                                             Collinsia bicolor

                                             Collinsia callosa

                                             Collinsia childii

                                                   [Collinsia breviflora]

                                             Collinsia concolor

                                             Collinsia corymbosa

                                             Collinsia grandiflora

                                               Collinsia grandiflora var. pusilla

                                             Collinsia greenei

                                             Collinsia heterophylla

                                               Collinsia heterophylla var. austromontana

                                                     [Collinsia austromontana]

                                               Collinsia heterophylla var. heterophylla

                                             Collinsia linearis

                                             Collinsia multicolor

                                                   [Collinsia franciscana]

                                             Collinsia parryi

                                                   [Collinsia antonina ssp. purpurea]

                                                   [Collinsia antonina]

                                                   [Collinsia cahonis]

                                             Collinsia parviflora

                                                   [Antirrhinum tenellum]

                                                   [Collinsia minima]

                                                   [Collinsia tenella]

                                               Collinsia parviflora var. grandiflora

                                             Collinsia rattanii

                                                   [Collinsia glandulosa]

                                               Collinsia rattanii var. linearis

                                               Collinsia rattanii ssp. glandulosa

                                               Collinsia rattanii ssp. rattanii

                                             Collinsia sparsiflora

                                                   [Collinsia arvensis]

                                               Collinsia sparsiflora var. arvensis

                                               Collinsia sparsiflora var. bruceae

                                                     [Collinsia bruceae]

                                               Collinsia sparsiflora var. collina

                                                     [Collinsia solitaria]

                                               Collinsia sparsiflora var. sparsiflora

                                             Collinsia tinctoria

                                             Collinsia torreyi

                                               Collinsia torreyi var. brevicarinata

                                               Collinsia torreyi var. latifolia

                                               Collinsia torreyi var. torreyi

                                               Collinsia torreyi var. wrightii

                                                     [Collinsia wrightii]

                                             Collinsia verna

                                             Collinsia violacea

                                     Conobea

                                             Conobea aquatica

                                     Cymbalaria

                                             Cymbalaria longipes

                                             Cymbalaria muralis

                                                   [Linaria cymbalaria]

                                             Cymbalaria pallida

                              Digitalidoideae

                                     Aragoa

                                             Aragoa lucidula

                                             Aragoa occidentalis

                                     Erinus

                                             Erinus alpinus

                                     Hemiphragma

                                             Hemiphragma heterophyllum

                                     Sibthorpia

                                           [Disandra]

                                             Sibthorpia peregrina

                                                   [Disandra prostrata]

                                     Digitalis

                                             Digitalis grandiflora

                                                   [Digitalis ambigua]

                                                   [Digitalis orientalis]

                                             Digitalis lanata

                                             Digitalis lutea

                                             Digitalis purpurea

                                               Digitalis purpurea var. alba

                                               Digitalis purpurea var. gloxiniiflora

                                               Digitalis purpurea var. tomentosa

                                               Digitalis purpurea ssp. purpurea

                                             Digitalis ×fulva

                                                   [Digitalis ×fuscescens]

                                     Dopatrium

                                             Dopatrium junceum

                                     Gambelia

                                             Gambelia glabrata

                                                   [Galvezia glabrata]

                                             Gambelia juncea

                                                   [Galvezia juncea]

                                             Gambelia speciosa

                                                   [Galvezia speciosa]

                              Globularioideae

                                     Globularia

                                             Globularia bisnagarica

                                             Globularia vulgaris

                                     Gratiola

                                             Gratiola aurea

                                                   [Gratiola lutea]

                                                   Gratiola aurea f. helveola

                                                   Gratiola aurea f. leucantha

                                               Gratiola aurea var. obtusa

                                             Gratiola brevifolia

                                             Gratiola drummondii

                                             Gratiola ebracteata

                                             Gratiola flava

                                             Gratiola floridana

                                             Gratiola graniticola

                                             Gratiola heterosepala

                                             Gratiola hispida

                                                   [Gratiola subulata]

                                                   [Sophronanthe hispida]

                                             Gratiola nana

                                                   [Gratiola concinna]

                                             Gratiola neglecta

                                                   [Gratiola gracilis]

                                               Gratiola neglecta var. glaberrima

                                             Gratiola officinalis

                                             Gratiola oresbia

                                             Gratiola peruviana

                                                   [Gratiola bogotensis]

                                             Gratiola pilosa

                                                   [Sophronanthe pilosa]

                                                   [Tragiola pilosa ssp. epilis]

                                                   [Tragiola pilosa]

                                               Gratiola pilosa var. epilis

                                             Gratiola pubescens

                                                   [Gratiola latifolia]

                                             Gratiola pusilla

                                             Gratiola quadridentata

                                             Gratiola quartermaniae

                                             Gratiola ramosa

                                             Gratiola sexdentata

                                             Gratiola torreyi

                                             Gratiola virginiana

                                                   [Gratiola acuminata]

                                                   [Gratiola caroliniensis]

                                               Gratiola virginiana var. aestuariorum

                                               Gratiola virginiana var. virginiana

                                                     [Gratiola sphaerocarpa]

                                             Gratiola viscidula

                                                   [Gratiola virginica]

                                                   [Gratiola viscidula ssp. shortii]

                                                   [Gratiola viscidula subsp. shortii]

                                                   [Gratiola viscosa]

                                               Gratiola viscidula var. shortii

                              Gratioloideae

                                     Adenosma

                                             Adenosma ternata

                                     Basistemon

                                           [Desdemona]

                                           [Hassleropsis]

                                             Basistemon bogotensis

                                             Basistemon klugii

                                             Basistemon pulchellus

                                                   [Basistemon rusbyi]

                                                   [Desdemona pulchella]

                                             Basistemon spinosus

                                                   [Hassleropsis spinosa]

                                     Cheilophyllum

                                             Cheilophyllum jamaicense

                                     Darcya

                                             Darcya vandellioides

                                                   [Conobea vandellioides]

                                     Dizygostemon

                                             Dizygostemon floribundum

                                                   [Beyrichia floribunda]

                                     Encopella

                                           [Encopa]

                                             Encopella tenuifolia

                                                   [Encopa tenuifolia]

                                     Fonkia

                                             Fonkia uliginosa

                                     Ildefonsia

                                             Ildefonsia bibracteata

                                     Matourea

                                           [Achetaria]

                                             Matourea erecta

                                                   [Achetaria bicolor]

                                                   [Achetaria sprengelii]

                                                   [Beyrichia villosa]

                                             Matourea ocymoides

                                                   [Beyrichia ajugoides]

                                                   [Beyrichia ocymoides]

                                             Matourea scutellarioides

                                                   [Achetaria guianensis]

                                                   [Beyrichia scutellarioides]

                                     Melosperma

                                             Melosperma andicola

                                                   [Melosperma glabra]

                                     Monttea

                                             Monttea chilensis

                                             Monttea schickendantzii

                                     Ourisia

                                             Ourisia alpina

                                                   [Ourisia pallens]

                                                   [Ourisia rosea]

                                             Ourisia breviflora

                                               Ourisia breviflora subsp. uniflora

                                                     [Ourisia uniflora]

                                             Ourisia chamaedrifolia

                                             Ourisia coccinea

                                               Ourisia coccinea subsp. coccinea

                                                     [Ourisia pearcei]

                                               Ourisia coccinea subsp. elegans

                                                     [Ourisia elegans]

                                             Ourisia fragrans

                                             Ourisia microphylla

                                             Ourisia polyantha

                                                   [Ourisia diazii]

                                             Ourisia pulchella

                                                   [Ourisia pratioides]

                                             Ourisia pygmaea

                                             Ourisia ruellioides

                                                   [Ourisia racemosa]

                                             Ourisia serpyllifolia

                                     Hebe

                                             Hebe franciscana

                                                   [Veronica franciscana]

                                             Hebe speciosa

                                                   [Veronica speciosa]

                                             Hebe stricta

                                     Herpestis

                                             Herpestis amplexicaulis

                                             Herpestis chamaedryoides

                                             Herpestis cuneifolia

                                             Herpestis monnieri

                                             Herpestis nigrescens

                                             Herpestis peduncularis

                                     Hippuris

                                             Hippuris maritima

                                             Hippuris montana

                                             Hippuris tetraphylla

                                             Hippuris vulgaris

                                     Holmgrenanthe

                                             Holmgrenanthe petrophila

                                                   [Asarina petrophila]

                                                   [Maurandella petrophila]

                                                   [Maurandya petrophila]

                                     Howelliella

                                             Howelliella ovata

                                                   [Antirrhinum ovatum]

                                     Hydranthelium

                                     Keckiella

                                             Keckiella antirrhinoides

                                               Keckiella antirrhinoides var. antirrhinoides

                                               Keckiella antirrhinoides var. microphylla

                                               Keckiella antirrhinoides ssp. antirrhinoides

                                                     [Penstemon antirrhinoides]

                                               Keckiella antirrhinoides ssp. microphylla

                                                     [Penstemon antirrhinoides ssp. microphyllus]

                                                     [Penstemon microphyllus]

                                             Keckiella breviflora

                                               Keckiella breviflora var. breviflora

                                               Keckiella breviflora var. glabrisepala

                                               Keckiella breviflora ssp. breviflora

                                                     [Penstemon breviflorus]

                                               Keckiella breviflora ssp. glabrisepala

                                                     [Penstemon breviflorus ssp. glabrisepalus]

                                             Keckiella cordifolia

                                                   [Penstemon cordifolius]

                                             Keckiella corymbosa

                                                   [Penstemon corymbosus]

                                             Keckiella lemmonii

                                                   [Penstemon lemmonii]

                                             Keckiella rothrockii

                                               Keckiella rothrockii var. jacintensis

                                               Keckiella rothrockii var. rothrockii

                                               Keckiella rothrockii ssp. jacintensis

                                                     [Penstemon rothrockii ssp. jacintensis]

                                               Keckiella rothrockii ssp. rothrockii

                                                     [Penstemon rothrockii]

                                             Keckiella ternata

                                               Keckiella ternata var. septentrionalis

                                               Keckiella ternata var. ternata

                                               Keckiella ternata ssp. septentrionalis

                                                     [Penstemon ternatus ssp. septentrionalis]

                                               Keckiella ternata ssp. ternata

                                                     [Penstemon ternatus]

                                     Kickxia

                                             Kickxia aegyptiaca

                                               Kickxia aegyptiaca subsp. aegyptiaca

                                                     [Linaria aegyptiaca]

                                             Kickxia elatine

                                                   [Antirrhinum elatine]

                                                   [Linaria elatine]

                                               Kickxia elatine subsp. sieberi

                                                     [Kickxia subsessilis]

                                             Kickxia floribunda

                                                   [Linaria floribunda]

                                             Kickxia spuria

                                                   [Antirrhinum spurium]

                                     Lagotis

                                             Lagotis alutacea

                                                   [Lagotis lancilimba]

                                               Lagotis alutacea var. rockii

                                                     [Lagotis rockii]

                                             Lagotis glauca

                                               Lagotis glauca subsp. minor

                                                     [Lagotis minor]

                                             Lagotis integra

                                             Lagotis praecox

                                             Lagotis wardii

                                             Lagotis yunnanensis

                                     Leiostemon

                                     Leptandra

                                     Leucospora

                                             Leucospora multifida

                                                   [Capraria multifida]

                                                   [Conobea multifida]

                                     Limnophila

                                             Limnophila helferi

                                             Limnophila indica

                                                   [Hottonia indica]

                                             Limnophila ludoviciana

                                             Limnophila repens

                                                   [Gratiola lucida]

                                             Limnophila rugosa

                                             Limnophila sessiliflora

                                     Linaria

                                             Linaria aeruginea

                                             Linaria alpina

                                             Linaria angustissima

                                                   [Linaria italica]

                                             Linaria bipartita

                                             Linaria capraria

                                             Linaria chalepensis

                                             Linaria dalmatica

                                                   [Linaria genistifolia subsp. dalmatica]

                                               Linaria dalmatica var. macedonica

                                               Linaria dalmatica ssp. dalmatica

                                                     [Linaria genistifolia ssp. dalmatica]

                                                     [Linaria jattae]

                                               Linaria dalmatica ssp. macedonica

                                                     [Linaria macedonica]

                                             Linaria genistifolia

                                             Linaria glauca

                                             Linaria incarnata

                                             Linaria maroccana

                                             Linaria minor

                                             Linaria munbyana

                                             Linaria odora

                                             Linaria pedunculata

                                             Linaria pelisseriana

                                             Linaria peloponnesiaca

                                                   [Linaria pallida]

                                             Linaria pinifolia

                                             Linaria purpurea

                                             Linaria reflexa

                                             Linaria repens

                                             Linaria reticulata

                                             Linaria sepium

                                             Linaria spartea

                                             Linaria supina

                                             Linaria thibetica

                                                   [Linaria yunnanensis var. caerulea]

                                             Linaria triphylla

                                             Linaria vulgaris

                                                   [Linaria linaria]

                                                   Linaria vulgaris f. leucantha

                                               Linaria vulgaris subsp. vulgaris

                                                     [Antirrhinum genistifolium]

                                                     [Antirrhinum linaria]

                                             Linaria yunnanensis

                                     Littorella

                                             Littorella uniflora

                                                   [Littorella americana]

                                               Littorella uniflora var. americana

                                     Mabrya

                                             Mabrya acerifolia

                                                   [Asarina acerifolia]

                                                   [Maurandya acerifolia]

                                             Mabrya erecta

                                                   [Maurandya erecta]

                                             Mabrya flaviflora

                                                   [Maurandya flaviflora]

                                             Mabrya geniculata

                                               Mabrya geniculata subsp. geniculata

                                                     [Maurandya geniculata]

                                             Mabrya rosei

                                                   [Maurandya rosei]

                                     Macuillamia

                                     Maurandella

                                             Maurandella antirrhiniflora

                                                   [Antirrhinum maurandioides]

                                                   [Asarina antirrhiniflora]

                                                   [Maurandya antirrhiniflora]

                                     Maurandya

                                             Maurandya barclaiana

                                             Maurandya scandens

                                     Mecardonia

                                           [Pagesia]

                                             Mecardonia acuminata

                                                   [Pagesia acuminata]

                                               Mecardonia acuminata var. acuminata

                                                     [Bacopa acuminata var. microphylla]

                                                     [Bacopa acuminata]

                                               Mecardonia acuminata var. microphylla

                                                     [Mecardonia acuminata subsp. microphylla]

                                               Mecardonia acuminata var. peninsularis

                                                     [Pagesia acuminata subsp. peninsularis]

                                             Mecardonia exilis

                                                   [Herpestis exilis]

                                             Mecardonia flagellaris

                                                   [Herpestis flagellaris]

                                                   [Herpestis radicata]

                                             Mecardonia grandiflora

                                                   [Herpestis grandiflora]

                                             Mecardonia procumbens

                                                   [Bacopa procumbens var. schottii]

                                                   [Bacopa procumbens]

                                                   [Erinus procumbens]

                                                   [Herpestis caprarioides]

                                                   [Herpestis colubrina]

                                                   [Herpestis divaricata]

                                                   [Herpestis macrantha]

                                                   [Herpestis vandellioides]

                                                   [Mecardonia dianthera]

                                                   [Mecardonia peduncularis]

                                                   [Mecardonia tenuis]

                                                   [Mecardonia viridis]

                                                   [Pagesia vandellioides]

                                               Mecardonia procumbens var. caespitosa

                                                     [Herpestis caespitosa]

                                               Mecardonia procumbens var. herniarioides

                                                     [Herpestis herniarioides]

                                               Mecardonia procumbens var. tenella

                                                     [Herpestis tenella]

                                             Mecardonia serpylloides

                                                   [Herpestis serpylloides]

                                                   [Mecardonia pusilla]

                                     Misopates

                                             Misopates orontium

                                                   [Antirrhinum orontium]

                                     Mohavea

                                             Mohavea breviflora

                                             Mohavea confertiflora

                                     Neogaerrhinum

                                             Neogaerrhinum filipes

                                                   [Antirrhinum cooperi]

                                                   [Antirrhinum filipes]

                                                   [Asarina filipes]

                                             Neogaerrhinum strictum

                                                   [Antirrhinum hookerianum]

                                                   [Antirrhinum kelloggii]

                                                   [Asarina stricta]

                                                   [Maurandya stricta]

                                                   [Neogaerrhinum kelloggii]

                                     Nothochelone

                                             Nothochelone nemorosa

                                                   [Penstemon nemorosus]

                                     Parahebe

                                             Parahebe spathulata

                                     Penstemon

                                             Penstemon abietinus

                                             Penstemon absarokensis

                                             Penstemon acaulis

                                               Penstemon acaulis var. yampaensis

                                             Penstemon acuminatus

                                               Penstemon acuminatus var. acuminatus

                                               Penstemon acuminatus var. latebracteatus

                                             Penstemon alamosensis

                                             Penstemon albertinus

                                             Penstemon albidus

                                             Penstemon albomarginatus

                                             Penstemon alluviorum

                                                   [Penstemon laevigatus ssp. alluviorum]

                                             Penstemon ambiguus

                                               Penstemon ambiguus var. ambiguus

                                                     [Leiostemon ambiguus]

                                               Penstemon ambiguus var. laevissimus

                                                     [Penstemon ambiguus ssp. laevissimus]

                                             Penstemon ammophilus

                                             Penstemon anguineus

                                             Penstemon angustifolius

                                               Penstemon angustifolius var. angustifolius

                                               Penstemon angustifolius var. caudatus

                                                     [Penstemon angustifolius ssp. caudatus]

                                                     [Penstemon caudatus]

                                               Penstemon angustifolius var. dulcis

                                               Penstemon angustifolius var. venosus

                                                     [Penstemon angustifolius ssp. venosus]

                                                     [Penstemon venosus]

                                               Penstemon angustifolius var. vernalensis

                                             Penstemon arenarius

                                                   [Penstemon maguirei]

                                             Penstemon arenicola

                                             Penstemon aridus

                                             Penstemon arkansanus

                                                   [Penstemon multicaulis]

                                                   [Penstemon pallidus ssp. arkansanus]

                                                   [Penstemon wherryi]

                                               Penstemon arkansanus var. pubescens

                                             Penstemon attenuatus

                                               Penstemon attenuatus var. attenuatus

                                               Penstemon attenuatus var. militaris

                                                     [Penstemon assurgens]

                                                     [Penstemon attenuatus ssp. militaris]

                                               Penstemon attenuatus var. palustris

                                                     [Penstemon attenuatus ssp. palustris]

                                               Penstemon attenuatus var. pseudoprocerus

                                                     [Penstemon attenuatus ssp. pseudoprocerus]

                                             Penstemon atwoodii

                                             Penstemon auriberbis

                                             Penstemon australis

                                               Penstemon australis var. ameles

                                             Penstemon azureus

                                               Penstemon azureus var. angustissimus

                                               Penstemon azureus var. azureus

                                               Penstemon azureus var. parvulus

                                               Penstemon azureus ssp. angustissimus

                                               Penstemon azureus ssp. azureus

                                                     [Penstemon parvulus]

                                             Penstemon baccharifolius

                                             Penstemon barbatus

                                                   [Chelone angustifolia]

                                               Penstemon barbatus var. coccineus

                                               Penstemon barbatus var. puberulus

                                               Penstemon barbatus var. torreyi

                                               Penstemon barbatus var. trichander

                                               Penstemon barbatus ssp. barbatus

                                               Penstemon barbatus ssp. torreyi

                                                     [Penstemon torreyi]

                                               Penstemon barbatus ssp. trichander

                                             Penstemon barnebyi

                                             Penstemon barrettiae

                                             Penstemon bicolor

                                               Penstemon bicolor ssp. bicolor

                                               Penstemon bicolor ssp. roseus

                                             Penstemon bracteatus

                                             Penstemon breviculus

                                                   [Penstemon jamesii ssp. breviculus]

                                             Penstemon bryantiae

                                             Penstemon buckleyi

                                             Penstemon caeruleum

                                             Penstemon caesius

                                             Penstemon caespitosus

                                               Penstemon caespitosus var. suffruticosus

                                               Penstemon caespitosus var. caespitosus

                                               Penstemon caespitosus var. desertipicti

                                                     [Penstemon caespitosus ssp. desertipicti]

                                               Penstemon caespitosus var. perbrevis

                                                     [Penstemon caespitosus ssp. perbrevis]

                                             Penstemon calcareus

                                             Penstemon californicus

                                             Penstemon calycosus

                                                   [Penstemon laevigatus ssp. calycosus]

                                             Penstemon campanulatus

                                             Penstemon canescens

                                                   [Penstemon brittoniorum]

                                               Penstemon canescens var. brittoniorum

                                               Penstemon canescens var. typicus

                                             Penstemon cardinalis

                                               Penstemon cardinalis ssp. cardinalis

                                               Penstemon cardinalis ssp. regalis

                                             Penstemon cardwellii

                                             Penstemon carnosus

                                             Penstemon caryi

                                             Penstemon centranthifolius

                                             Penstemon cinicola

                                             Penstemon clevelandii

                                               Penstemon clevelandii var. clevelandii

                                               Penstemon clevelandii var. connatus

                                               Penstemon clevelandii var. mohavensis

                                               Penstemon clevelandii ssp. clevelandii

                                               Penstemon clevelandii ssp. connatus

                                               Penstemon clevelandii ssp. mohavensis

                                             Penstemon clutei

                                             Penstemon cobaea

                                                   [Penstemon cobaea ssp. purpureus]

                                                   [Penstemon cobaea ssp. typicus]

                                               Penstemon cobaea var. purpureus

                                             Penstemon comarrhenus

                                             Penstemon compactus

                                                   [Penstemon cyananthus ssp. compactus]

                                             Penstemon concinnus

                                             Penstemon confertus

                                               Penstemon confertus var. procerus

                                             Penstemon confusus

                                             Penstemon crandallii

                                               Penstemon crandallii var. atratus

                                               Penstemon crandallii var. taosensis

                                               Penstemon crandallii ssp. atratus

                                               Penstemon crandallii ssp. crandallii

                                                     [Penstemon suffrutescens]

                                               Penstemon crandallii ssp. glabrescens

                                               Penstemon crandallii ssp. procumbens

                                               Penstemon crandallii ssp. taosensis

                                                     [Penstemon linarioides ssp. taosensis]

                                             Penstemon crideri

                                             Penstemon cristatus

                                             Penstemon cusickii

                                             Penstemon cyananthus

                                               Penstemon cyananthus var. compactus

                                               Penstemon cyananthus var. longiflorus

                                               Penstemon cyananthus var. cyananthus

                                               Penstemon cyananthus var. subglaber

                                                     [Penstemon cyananthus ssp. subglaber]

                                                     [Penstemon holmgrenii]

                                             Penstemon cyaneus

                                             Penstemon cyanocaulis

                                             Penstemon cyathophorus

                                             Penstemon dasyphyllus

                                             Penstemon davidsonii

                                               Penstemon davidsonii var. ellipticus

                                               Penstemon davidsonii var. davidsonii

                                                     [Penstemon menziesii ssp. davidsonii]

                                                     [Penstemon menziesii ssp. thompsonii]

                                               Penstemon davidsonii var. menziesii

                                                     [Penstemon davidsonii ssp. menziesii]

                                                     [Penstemon menziesii]

                                               Penstemon davidsonii var. praeteritus

                                             Penstemon deamii

                                             Penstemon deaveri

                                                   [Penstemon virgatus ssp. arizonicus]

                                             Penstemon debilis

                                             Penstemon degeneri

                                             Penstemon deustus

                                               Penstemon deustus var. heterander

                                               Penstemon deustus var. deustus

                                               Penstemon deustus var. pedicellatus

                                                     [Penstemon deustus ssp. heterander]

                                               Penstemon deustus var. suffrutescens

                                               Penstemon deustus var. variabilis

                                                     [Penstemon deustus ssp. variabilis]

                                                     [Penstemon variabilis]

                                             Penstemon diffusus

                                             Penstemon digitalis

                                                   [Penstemon laevigatus ssp. digitalis]

                                             Penstemon diphyllus

                                                   [Penstemon triphyllus ssp. diphyllus]

                                             Penstemon discolor

                                             Penstemon dissectus

                                             Penstemon distans

                                             Penstemon divergens

                                             Penstemon dolius

                                               Penstemon dolius var. dolius

                                               Penstemon dolius var. duchesnensis

                                                     [Penstemon duchesnensis]

                                             Penstemon dubius

                                             Penstemon eatonii

                                               Penstemon eatonii var. eatonii

                                               Penstemon eatonii var. undosus

                                               Penstemon eatonii ssp. eatonii

                                               Penstemon eatonii ssp. exsertus

                                               Penstemon eatonii ssp. undosus

                                             Penstemon elegantulus

                                             Penstemon ellipticus

                                             Penstemon eriantherus

                                               Penstemon eriantherus var. argillosus

                                                     [Penstemon whitedii ssp. dayanus]

                                               Penstemon eriantherus var. cleburnei

                                                     [Penstemon cleburnei]

                                               Penstemon eriantherus var. eriantherus

                                               Penstemon eriantherus var. redactus

                                                     [Penstemon whitedii ssp. tristis]

                                               Penstemon eriantherus var. whitedii

                                                     [Penstemon whitedii]

                                             Penstemon euglaucus

                                             Penstemon fendleri

                                             Penstemon filiformis

                                             Penstemon flavescens

                                             Penstemon floribundus

                                             Penstemon floridus

                                               Penstemon floridus var. austinii

                                                     [Penstemon floridus ssp. austinii]

                                               Penstemon floridus var. floridus

                                             Penstemon flowersii

                                             Penstemon franklinii

                                             Penstemon fremontii

                                               Penstemon fremontii var. fremontii

                                               Penstemon fremontii var. glabrescens

                                             Penstemon fruticiformis

                                               Penstemon fruticiformis var. amargosae

                                               Penstemon fruticiformis var. fruticiformis

                                               Penstemon fruticiformis ssp. amargosae

                                               Penstemon fruticiformis ssp. fruticiformis

                                             Penstemon fruticosus

                                               Penstemon fruticosus var. albus

                                               Penstemon fruticosus var. fruticosus

                                               Penstemon fruticosus var. scouleri

                                                     [Penstemon fruticosus ssp. scouleri]

                                                     [Penstemon scouleri]

                                               Penstemon fruticosus var. serratus

                                                     [Penstemon fruticosus ssp. serratus]

                                             Penstemon gairdneri

                                               Penstemon gairdneri var. hians

                                               Penstemon gairdneri var. gairdneri

                                                     [Penstemon gairdneri ssp. hians]

                                               Penstemon gairdneri var. oreganus

                                                     [Penstemon gairdneri ssp. oreganus]

                                                     [Penstemon puberulentus]

                                             Penstemon gentianoides

                                                   [Chelone gentianoides]

                                             Penstemon gibbensii

                                             Penstemon glaber

                                               Penstemon glaber var. alpinus

                                                     [Penstemon alpinus]

                                               Penstemon glaber var. brandegeei

                                                     [Penstemon alpinus ssp. brandegeei]

                                                     [Penstemon brandegeei]

                                               Penstemon glaber var. glaber

                                                     [Penstemon alpinus ssp. magnus]

                                             Penstemon glandulosus

                                               Penstemon glandulosus var. chelanensis

                                                     [Penstemon glandulosus ssp. chelanensis]

                                               Penstemon glandulosus var. glandulosus

                                             Penstemon glaucinus

                                             Penstemon globosus

                                             Penstemon goodrichii

                                             Penstemon gracilentus

                                             Penstemon gracilis

                                               Penstemon gracilis var. gracilis

                                                     [Penstemon glaucus]

                                               Penstemon gracilis var. wisconsinensis

                                                     [Penstemon gracilis ssp. wisconsinensis]

                                                     [Penstemon wisconsinensis]

                                             Penstemon grahamii

                                             Penstemon grandiflorus

                                                   [Penstemon bradburii]

                                             Penstemon griffinii

                                             Penstemon grinnellii

                                               Penstemon grinnellii var. grinnellii

                                               Penstemon grinnellii var. scrophularioides

                                               Penstemon grinnellii ssp. grinnellii

                                               Penstemon grinnellii ssp. scrophularioides

                                             Penstemon guadalupensis

                                               Penstemon guadalupensis var. ernstii

                                             Penstemon hallii

                                             Penstemon harbourii

                                             Penstemon harringtonii

                                             Penstemon hartwegii

                                             Penstemon havardii

                                             Penstemon haydenii

                                             Penstemon heterodoxus

                                               Penstemon heterodoxus var. cephalophorus

                                                     [Penstemon heterodoxus ssp. cephalophorus]

                                               Penstemon heterodoxus var. heterodoxus

                                               Penstemon heterodoxus var. shastensis

                                                     [Penstemon shastensis]

                                             Penstemon heterophyllus

                                               Penstemon heterophyllus var. australis

                                               Penstemon heterophyllus var. heterophyllus

                                               Penstemon heterophyllus var. purdyi

                                               Penstemon heterophyllus ssp. australis

                                               Penstemon heterophyllus ssp. heterophyllus

                                               Penstemon heterophyllus ssp. purdyi

                                                     [Penstemon spinulosus]

                                             Penstemon hirsutus

                                               Penstemon hirsutus var. minimus

                                               Penstemon hirsutus var. pygmaeus

                                               Penstemon hirsutus var. pyrmaeus

                                             Penstemon humilis

                                               Penstemon humilis var. brevifolius

                                               Penstemon humilis var. deserticus

                                               Penstemon humilis var. humilis

                                               Penstemon humilis var. obtusifolius

                                               Penstemon humilis ssp. brevifolius

                                               Penstemon humilis ssp. humilis

                                                     [Penstemon cinereus var. foliatus]

                                                     [Penstemon cinereus]

                                                     [Penstemon decurvus]

                                               Penstemon humilis ssp. obtusifolius

                                             Penstemon idahoensis

                                             Penstemon imberbis

                                                   [Chelone imberbis]

                                             Penstemon immanifestus

                                             Penstemon incertus

                                             Penstemon inflatus

                                             Penstemon jamesii

                                                   [Penstemon brevibarbatus]

                                                   [Penstemon jamesii ssp. typicus]

                                             Penstemon janishiae

                                             Penstemon jonesii

                                             Penstemon kingii

                                                   [Penstemon nyeensis]

                                             Penstemon labrosus

                                             Penstemon laetus

                                               Penstemon laetus var. laetus

                                               Penstemon laetus var. leptosepalus

                                               Penstemon laetus var. roezlii

                                               Penstemon laetus var. sagittatus

                                               Penstemon laetus ssp. laetus

                                               Penstemon laetus ssp. leptosepalus

                                               Penstemon laetus ssp. sagittatus

                                             Penstemon laevigatus

                                                   [Penstemon penstemon]

                                               Penstemon laevigatus subsp. digitalis

                                               Penstemon laevigatus var. angulatus

                                               Penstemon laevigatus var. deamii

                                             Penstemon laevis

                                             Penstemon laricifolius

                                               Penstemon laricifolius var. exilifolius

                                               Penstemon laricifolius var. laricifolius

                                               Penstemon laricifolius ssp. exilifolius

                                               Penstemon laricifolius ssp. laricifolius

                                             Penstemon laxiflorus

                                                   [Penstemon australis ssp. laxiflorus]

                                             Penstemon laxus

                                                   [Penstemon watsonii ssp. laxus]

                                             Penstemon leiophyllus

                                               Penstemon leiophyllus var. francisci-pennellii

                                                     [Penstemon francisci-pennellii]

                                               Penstemon leiophyllus var. keckii

                                                     [Penstemon keckii]

                                               Penstemon leiophyllus var. leiophyllus

                                             Penstemon lemhiensis

                                                   [Penstemon speciosus ssp. lemhiensis]

                                             Penstemon lentus

                                               Penstemon lentus var. albiflorus

                                                     [Penstemon lentus ssp. albiflorus]

                                               Penstemon lentus var. lentus

                                             Penstemon leonardii

                                               Penstemon leonardii var. higginsii

                                               Penstemon leonardii var. leonardii

                                               Penstemon leonardii var. patricus

                                                     [Penstemon patricus]

                                             Penstemon leptanthus

                                             Penstemon linarioides

                                               Penstemon linarioides var. coloradoensis

                                               Penstemon linarioides var. sileri

                                               Penstemon linarioides var. viridis

                                               Penstemon linarioides ssp. coloradoensis

                                                     [Penstemon coloradoensis]

                                               Penstemon linarioides ssp. compactifolius

                                               Penstemon linarioides ssp. linarioides

                                                     [Penstemon linarioides ssp. typicus]

                                               Penstemon linarioides ssp. maguirei

                                               Penstemon linarioides ssp. sileri

                                             Penstemon longiflorus

                                                   [Penstemon cyananthus ssp. longiflorus]

                                             Penstemon lyallii

                                             Penstemon marcusii

                                                   [Penstemon moffatii ssp. marcusii]

                                             Penstemon mensarum

                                             Penstemon metcalfei

                                             Penstemon mirus

                                             Penstemon miser

                                             Penstemon moffatii

                                               Penstemon moffatii ssp. moffatii

                                               Penstemon moffatii ssp. paysonii

                                             Penstemon monoensis

                                             Penstemon montanus

                                               Penstemon montanus var. idahoensis

                                                     [Penstemon montanus ssp. idahoensis]

                                               Penstemon montanus var. montanus

                                             Penstemon moriahensis

                                             Penstemon multiflorus

                                             Penstemon murrayanus

                                             Penstemon nanus

                                             Penstemon navajoa

                                             Penstemon neomexicanus

                                             Penstemon neotericus

                                             Penstemon newberryi

                                               Penstemon newberryi var. berryi

                                               Penstemon newberryi var. newberryi

                                               Penstemon newberryi var. sonomensis

                                               Penstemon newberryi ssp. berryi

                                               Penstemon newberryi ssp. newberryi

                                               Penstemon newberryi ssp. sonomensis

                                             Penstemon nitidus

                                               Penstemon nitidus var. nitidus

                                               Penstemon nitidus var. polyphyllus

                                                     [Penstemon nitidus ssp. polyphyllus]

                                             Penstemon nudiflorus

                                             Penstemon oklahomensis

                                             Penstemon oliganthus

                                             Penstemon ophianthus

                                                   [Penstemon jamesii ssp. ophianthus]

                                             Penstemon osterhoutii

                                             Penstemon ovatus

                                               Penstemon ovatus var. pinetorum

                                             Penstemon pachyphyllus

                                               Penstemon pachyphyllus var. congestus

                                                     [Penstemon congestus]

                                                     [Penstemon pachyphyllus ssp. congestus]

                                               Penstemon pachyphyllus var. mucronatus

                                                     [Penstemon mucronatus]

                                               Penstemon pachyphyllus var. pachyphyllus

                                             Penstemon pahutensis

                                             Penstemon pallidus

                                                   [Penstemon brevisepalus]

                                             Penstemon palmeri

                                               Penstemon palmeri var. eglandulosus

                                                     [Penstemon palmeri ssp. eglandulosus]

                                               Penstemon palmeri var. macranthus

                                                     [Penstemon macranthus]

                                               Penstemon palmeri var. palmeri

                                                     [Penstemon palmeri ssp. typicus]

                                             Penstemon papillatus

                                             Penstemon parishii

                                             Penstemon parryi

                                             Penstemon parviflorus

                                             Penstemon parvus

                                             Penstemon patens

                                                   [Penstemon confusus ssp. patens]

                                             Penstemon payettensis

                                             Penstemon paysoniorum

                                             Penstemon peckii

                                             Penstemon peirsonii

                                             Penstemon penlandii

                                             Penstemon pennellianus

                                             Penstemon perpulcher

                                                   [Penstemon minidokanus]

                                             Penstemon personatus

                                             Penstemon petiolatus

                                             Penstemon pinifolius

                                             Penstemon pinorum

                                             Penstemon platyphyllus

                                             Penstemon pratensis

                                             Penstemon procerus

                                               Penstemon procerus var. aberrans

                                                     [Penstemon procerus ssp. aberrans]

                                               Penstemon procerus var. brachyanthus

                                                     [Penstemon procerus ssp. brachyanthus]

                                                     [Penstemon tolmiei ssp. brachyanthus]

                                               Penstemon procerus var. formosus

                                                     [Penstemon procerus ssp. formosus]

                                                     [Penstemon tolmiei ssp. formosus]

                                               Penstemon procerus var. modestus

                                                     [Penstemon modestus]

                                                     [Penstemon procerus ssp. modestus]

                                               Penstemon procerus var. procerus

                                                     [Penstemon confertus ssp. procerus]

                                               Penstemon procerus var. tolmiei

                                                     [Penstemon procerus ssp. tolmiei]

                                                     [Penstemon tolmiei]

                                             Penstemon pruinosus

                                             Penstemon pseudoparvus

                                             Penstemon pseudoputus

                                                   [Penstemon virgatus ssp. pseudoputus]

                                             Penstemon pseudospectabilis

                                               Penstemon pseudospectabilis ssp. connatifolius

                                               Penstemon pseudospectabilis ssp. pseudospectabilis

                                                     [Penstemon pseudospectabilis ssp. typicus]

                                             Penstemon pubescens

                                             Penstemon pudicus

                                             Penstemon pumilus

                                             Penstemon puniceus

                                             Penstemon purpusii

                                             Penstemon putus

                                                   [Penstemon virgatus ssp. putus]

                                             Penstemon radicosus

                                             Penstemon ramosus

                                             Penstemon rattanii

                                               Penstemon rattanii var. kleei

                                               Penstemon rattanii var. minor

                                               Penstemon rattanii var. rattanii

                                               Penstemon rattanii ssp. kleei

                                               Penstemon rattanii ssp. rattanii

                                             Penstemon retrorsus

                                             Penstemon rhizomatosus

                                             Penstemon richardsonii

                                               Penstemon richardsonii var. curtiflorus

                                                     [Penstemon richardsonii ssp. curtiflorus]

                                               Penstemon richardsonii var. dentatus

                                                     [Penstemon richardsonii ssp. dentatus]

                                               Penstemon richardsonii var. richardsonii

                                             Penstemon roezlii

                                                   [Penstemon cinerascens]

                                                   [Penstemon laetus ssp. roezlii]

                                             Penstemon rostriflorus

                                                   [Penstemon bridgesii var. amplexicaulis]

                                                   [Penstemon bridgesii]

                                             Penstemon rubicundus

                                             Penstemon rupicola

                                             Penstemon rydbergii

                                               Penstemon rydbergii var. varians

                                               Penstemon rydbergii var. aggregatus

                                                     [Penstemon aggregatus]

                                                     [Penstemon rydbergii ssp. aggregatus]

                                               Penstemon rydbergii var. oreocharis

                                                     [Penstemon oreocharis]

                                               Penstemon rydbergii var. rydbergii

                                                     [Penstemon hesperius]

                                                     [Penstemon vaseyanus]

                                             Penstemon saxosorum

                                             Penstemon scapoides

                                             Penstemon scariosus

                                               Penstemon scariosus var. albifluvis

                                                     [Penstemon albifluvis]

                                               Penstemon scariosus var. cyanomontanus

                                               Penstemon scariosus var. garrettii

                                                     [Penstemon garrettii]

                                               Penstemon scariosus var. scariosus

                                             Penstemon secundiflorus

                                             Penstemon seorsus

                                             Penstemon sepalulus

                                                   [Penstemon azureus var. ambiguus]

                                             Penstemon serrulatus

                                             Penstemon smallii

                                             Penstemon spatulatus

                                             Penstemon speciosus

                                                   [Penstemon speciosus ssp. kennedyi]

                                             Penstemon spectabilis

                                               Penstemon spectabilis var. spectabilis

                                               Penstemon spectabilis var. subviscosus

                                               Penstemon spectabilis ssp. spectabilis

                                               Penstemon spectabilis ssp. subviscosus

                                             Penstemon stenophyllus

                                             Penstemon stephensii

                                             Penstemon strictiformis

                                                   [Penstemon strictus ssp. strictiformis]

                                             Penstemon strictus

                                                   [Penstemon strictus ssp. angustus]

                                             Penstemon subglaber

                                             Penstemon subserratus

                                             Penstemon subulatus

                                             Penstemon sudans

                                                   [Penstemon deustus ssp. sudans]

                                             Penstemon superbus

                                             Penstemon tenuiflorus

                                             Penstemon tenuis

                                             Penstemon teucrioides

                                             Penstemon thompsoniae

                                               Penstemon thompsoniae var. desperatus

                                               Penstemon thompsoniae ssp. jaegeri

                                               Penstemon thompsoniae ssp. thompsoniae

                                             Penstemon thurberi

                                               Penstemon thurberi var. anestius

                                             Penstemon tidestromii

                                             Penstemon tiehmii

                                             Penstemon tracyi

                                             Penstemon triflorus

                                               Penstemon triflorus var. integrifolius

                                               Penstemon triflorus ssp. integrifolius

                                                     [Penstemon helleri]

                                               Penstemon triflorus ssp. triflorus

                                             Penstemon triphyllus

                                             Penstemon tubaeflorus

                                             Penstemon tubiflorus

                                               Penstemon tubiflorus var. achoreus

                                               Penstemon tubiflorus var. tubiflorus

                                             Penstemon tusharensis

                                             Penstemon uintahensis

                                             Penstemon unilateralis

                                                   [Penstemon virgatus ssp. asa-grayi]

                                             Penstemon utahensis

                                             Penstemon venustus

                                             Penstemon versicolor

                                             Penstemon virens

                                             Penstemon virgatus

                                               Penstemon virgatus var. asa-grayi

                                             Penstemon wardii

                                             Penstemon washingtonensis

                                             Penstemon washoensis

                                             Penstemon watsonii

                                             Penstemon whippleanus

                                             Penstemon wilcoxii

                                             Penstemon wrightii

                                             Penstemon yampaensis

                                     Plantago

                                             Plantago afra

                                             Plantago albicans

                                             Plantago arborescens

                                             Plantago argyrea

                                                   [Plantago argyraea]

                                                   [Plantago purshii var. argyrea]

                                             Plantago aristata

                                               Plantago aristata var. nuttallii

                                             Plantago australis

                                               Plantago australis ssp. hirtella

                                                     [Plantago hirtella ssp. galeottiana]

                                                     [Plantago hirtella var. galeottiana]

                                                     [Plantago hirtella var. mollior]

                                                     [Plantago hirtella]

                                             Plantago bigelovii

                                               Plantago bigelovii ssp. bigelovii

                                               Plantago bigelovii ssp. californica

                                                     [Plantago californica]

                                             Plantago borealis

                                             Plantago canescens

                                                   [Plantago septata]

                                               Plantago canescens var. cylindrica

                                             Plantago cordata

                                             Plantago coronopus

                                                   [Plantago coronopus ssp. commutata]

                                             Plantago cretica

                                             Plantago decipiens

                                             Plantago durvillei

                                             Plantago elongata

                                               Plantago elongata ssp. elongata

                                               Plantago elongata ssp. pentasperma

                                             Plantago erecta

                                                   [Plantago erecta ssp. rigidior]

                                             Plantago eriopoda

                                                   [Plantago shastensis]

                                               Plantago eriopoda var. tweedyi

                                             Plantago firma

                                                   [Plantago truncata ssp. firma]

                                             Plantago helleri

                                             Plantago heterophylla

                                             Plantago hookeriana

                                               Plantago hookeriana var. californica

                                               Plantago hookeriana var. nuda

                                             Plantago intermedia

                                             Plantago juncoides

                                               Plantago juncoides var. californica

                                               Plantago juncoides var. decipiens

                                               Plantago juncoides var. glauca

                                               Plantago juncoides var. laurentiana

                                             Plantago lanceolata

                                               Plantago lanceolata var. sphaerostachya

                                             Plantago macrocarpa

                                             Plantago major

                                                   [Plantago halophila]

                                                   [Plantago major ssp. intermedia]

                                               Plantago major var. intermedia

                                               Plantago major var. pachyphylla

                                               Plantago major var. pilgeri

                                               Plantago major var. scopulorum

                                             Plantago maratima

                                             Plantago maritima

                                               Plantago maritima ssp. juncoides

                                               Plantago maritima subsp. salsa

                                               Plantago maritima var. californica

                                               Plantago maritima var. juncoides

                                                     [Plantago juncoides]

                                                     [Plantago maritima ssp. borealis]

                                                     [Plantago maritima ssp. juncoides]

                                                     [Plantago oliganthos var. fallax]

                                                     [Plantago oliganthos]

                                             Plantago media

                                               Plantago media var. monnieri

                                             Plantago mexicana

                                             Plantago ovata

                                                   [Plantago brunnea]

                                                   [Plantago fastigiata]

                                                   [Plantago gooddingii]

                                                   [Plantago insularis var. fastigiata]

                                                   [Plantago insularis var. scariosa]

                                                   [Plantago insularis]

                                                   [Plantago minima]

                                             Plantago patagonica

                                                   [Plantago picta]

                                                   [Plantago purshii var. argyraea]

                                                   [Plantago purshii var. breviscapa]

                                                   [Plantago purshii var. oblonga]

                                                   [Plantago purshii var. picta]

                                                   [Plantago purshii var. spinulosa]

                                                   [Plantago purshii]

                                                   [Plantago spinulosa]

                                                   [Plantago wyomingensis]

                                               Plantago patagonica var. aristata

                                               Plantago patagonica var. breviscapa

                                               Plantago patagonica var. californica

                                               Plantago patagonica var. gnaphalioides

                                               Plantago patagonica var. oblonga

                                               Plantago patagonica var. spinulosa

                                             Plantago pauciflora

                                             Plantago psyllium

                                                   [Plantago arenaria]

                                                   [Plantago indica]

                                                   [Plantago scabra]

                                             Plantago pusilla

                                                   [Plantago hybrida]

                                               Plantago pusilla var. major

                                             Plantago rhodosperma

                                             Plantago rugelii

                                               Plantago rugelii var. asperula

                                               Plantago rugelii var. rugelii

                                             Plantago scariosa

                                             Plantago serraria

                                             Plantago sparsiflora

                                             Plantago subnuda

                                             Plantago tweedyi

                                             Plantago virginica

                                               Plantago virginica var. viridescens

                                             Plantago wrightiana

                                     Pseudolysimachion

                                             Pseudolysimachion longifolium

                                                   [Veronica longifolia]

                                             Pseudolysimachion spurium

                                                   [Veronica spuria]

                                     Pseudorontium

                                             Pseudorontium cyathiferum

                                                   [Antirrhinum cyathiferum]

                                     Russelia

                                             Russelia equisetiformis

                                                   [Russelia juncea]

                                     Schistophragma

                                             Schistophragma intermedia

                                             Schistophragma intermedium

                                                   [Conobea intermedia]

                                     Scoparia

                                             Scoparia dulcis

                                                   [Capraria dulcis var. coerulea]

                                                   [Capraria dulcis]

                                                   [Gratiola micrantha]

                                             Scoparia flava

                                             Scoparia montevidensis

                                               Scoparia montevidensis var. glandulifera

                                     Sophronanthe

                                     Stemodia

                                             Stemodia durantifolia

                                                   [Capraria durantifolia]

                                                   [Conobea verticillaris]

                                                   [Stemodia arizonica]

                                             Stemodia lanata

                                                   [Stemodia tomentosa]

                                             Stemodia lobelioides

                                                   [Gratiola tetragona]

                                             Stemodia schottii

                                             Stemodia verticillata

                                                   [Erinus verticillatus]

                                     Synthyris

                                             Synthyris canbyi

                                             Synthyris houghtoniana

                                             Synthyris laciniata

                                                   [Synthyris laciniata ssp. ibapahensis]

                                             Synthyris missurica

                                               Synthyris missurica var. major

                                               Synthyris missurica ssp. hirsuta

                                               Synthyris missurica ssp. missurica

                                               Synthyris missurica ssp. stellata

                                                     [Synthyris stellata]

                                             Synthyris pinnatifida

                                               Synthyris pinnatifida var. laciniata

                                               Synthyris pinnatifida var. canescens

                                                     [Synthyris cymopteroides]

                                                     [Synthyris dissecta]

                                                     [Synthyris hendersonii]

                                               Synthyris pinnatifida var. lanuginosa

                                                     [Synthyris lanuginosa]

                                               Synthyris pinnatifida var. pinnatifida

                                                     [Synthyris paysonii]

                                             Synthyris plantaginea

                                               Synthyris plantaginea subsp. plantaginea

                                                     [Atelianthus veronicoides]

                                             Synthyris platycarpa

                                             Synthyris ranunculina

                                             Synthyris reniformis

                                               Synthyris reniformis var. major

                                               Synthyris reniformis var. cordata

                                               Synthyris reniformis var. reniformis

                                             Synthyris schizantha

                                             Synthyris wyomingensis

                                     Tonella

                                             Tonella floribunda

                                             Tonella tenella

                                     Tragiola

                                     Veronica

                                           [Atelianthus]

                                             Veronica agrestis

                                             Veronica albiflora

                                                   [Hebe albiflora]

                                             Veronica alpina

                                               Veronica alpina var. alterniflora

                                               Veronica alpina var. cascadensis

                                               Veronica alpina var. geminiflora

                                               Veronica alpina var. nutans

                                               Veronica alpina var. terrae-novae

                                               Veronica alpina var. unalaschcensis

                                             Veronica americana

                                             Veronica anagallis-aquatica

                                                   [Veronica anagallis]

                                                   [Veronica catenata var. glandulosa]

                                                   [Veronica catenata]

                                                   [Veronica connata ssp. glaberrima]

                                                   [Veronica glandifera]

                                                   [Veronica lackschewitzii]

                                                   [Veronica micromeria]

                                             Veronica angustifolia

                                                   [Veronica austriaca subsp. vahlii]

                                             Veronica arvensis

                                             Veronica austriaca

                                               Veronica austriaca ssp. teucrium

                                                     [Veronica crinita]

                                                     [Veronica latifolia]

                                                     [Veronica teucrium]

                                             Veronica barrelieri

                                             Veronica beccabunga

                                               Veronica beccabunga subsp. beccabunga

                                                     [Veronica fontinalis]

                                             Veronica biloba

                                             Veronica brassii

                                                   [Hebe brassii]

                                             Veronica brittonii

                                             Veronica byzantina

                                             Veronica calycina

                                             Veronica campylopoda

                                             Veronica carminea

                                                   [Hebe rubra]

                                             Veronica chamaedrys

                                             Veronica cinerea

                                             Veronica comosa

                                               Veronica comosa var. glaberrima

                                               Veronica comosa var. glandulosa

                                             Veronica copelandii

                                             Veronica cusickii

                                             Veronica cymbalaria

                                                   [Veronica glandulifera]

                                             Veronica dabneyi

                                             Veronica dillenii

                                             Veronica diosmoides

                                                   [Hebe thymelaeoides]

                                             Veronica filiformis

                                             Veronica fruticans

                                             Veronica grandis

                                                   [Veronica bachofenii]

                                             Veronica hederifolia

                                             Veronica incana

                                               Veronica incana subsp. incana

                                                     [Pseudolysimachion incanum]

                                                     [Veronica spicata subsp. incana]

                                             Veronica inflexa

                                                   [Hebe rigida]

                                             Veronica ionantha

                                                   [Hebe ciliata]

                                             Veronica lavaudiana

                                                   [Hebe lavaudiana]

                                                   [Heliohebe lavaudiana]

                                             Veronica macrocarpa

                                                   [Hebe macrocarpa]

                                             Veronica montana

                                             Veronica officinalis

                                               Veronica officinalis var. officinalis

                                               Veronica officinalis var. tournefortii

                                                     [Veronica tournefortii]

                                             Veronica paniculata

                                             Veronica peregrina

                                               Veronica peregrina subsp. peregrina

                                               Veronica peregrina var. typica

                                               Veronica peregrina var. xalapensis

                                               Veronica peregrina ssp. peregrina

                                               Veronica peregrina ssp. xalapensis

                                                     [Veronica sherwoodii]

                                                     [Veronica xalapensis]

                                             Veronica persica

                                                   [Veronica buxbaumii]

                                                   [Veronica precox]

                                               Veronica persica var. aschersoniana

                                               Veronica persica var. corrensiana

                                             Veronica polita

                                                   [Veronica didyma]

                                             Veronica prostrata

                                             Veronica scutellata

                                                   [Veronica scutellata var. pubescens]

                                               Veronica scutellata var. villosa

                                             Veronica serpyllifolia

                                               Veronica serpyllifolia subsp. serpyllifolia

                                               Veronica serpyllifolia var. borealis

                                               Veronica serpyllifolia var. humifusa

                                                     [Veronica serpyllifolia subsp. humifusa]

                                               Veronica serpyllifolia var. nummularioides

                                               Veronica serpyllifolia ssp. humifusa

                                                     [Veronica humifusa]

                                                     [Veronica tenella]

                                                     [Veronicastrum serpyllifolium ssp. humifusum]

                                               Veronica serpyllifolia ssp. serpyllifolia

                                                     [Veronicastrum serpyllifolium]

                                             Veronica spicata

                                               Veronica spicata subsp. spicata

                                                     [Veronica hybrida]

                                               Veronica spicata ssp. spicata

                                                     [Pseudolysimachion spicatum]

                                             Veronica stricta

                                             Veronica strigosa

                                                   [Hebe tenuis]

                                             Veronica subalpina

                                                   [Hebe fruticeti]

                                             Veronica tetragona

                                               Veronica tetragona subsp. tetragona

                                                     [Hebe tetragona]

                                             Veronica triphyllos

                                             Veronica undulata

                                             Veronica verna

                                             Veronica wilhelminensis

                                                   [Hebe polyphylla]

                                             Veronica wormskjoldii

                                               Veronica wormskjoldii var. wormskjoldii

                                                     [Veronica nutans]

                                                     [Veronica wormskjoldii ssp. alterniflora]

                                     Veronicastrum

                                           [Botryopleuron]

                                           [Calorhabdos]

                                             Veronicastrum latifolium

                                                   [Calorhabdos latifolia]

                                             Veronicastrum stenostachyum

                                               Veronicastrum stenostachyum subsp. stenostachyum

                                                     [Calorhabdos stenostachya]

                                                     [Calorhabdos venosa]

                                             Veronicastrum virginicum

                                                   [Leptandra virginica var. purpurea]

                                                   [Leptandra virginica]

                                                   [Veronica virginica]

                                             Veronicastrum yunnanense

                                                   [Botryopleuron yunnanense]

                                     Wulfenia

                                             Wulfenia plantaginea

                                             Wulfenia rubra

Problematic Rooting (847886)

                                               Gratiola lutea var. glaberrima

Problematic Rooting (859617)

                                               Veronica anagallis var. latifolia