Children (380 direct children, 654 direct and indirect children):
Penstemon digitalis
Talus slope penstemon
Penstemon palmeri
(tree size 4)
Palmer's penstemon
Penstemon heterodoxus
(tree size 3)
Sierra beardtongue
Penstemon procerus
(tree size 8)
Littleflower penstemon
Penstemon dolius
(tree size 2)
Jones' beardtongue
Penstemon ambiguus
(tree size 2)
Gilia beardtongue
Penstemon barbatus
(tree size 7)
Beardlip penstemon
Penstemon acuminatus
(tree size 3)
Sharpleaf penstemon
Penstemon albomarginatus
Whitemargin beardtongue
Penstemon angustifolius
(tree size 6)
Broadbeard beardtongue
Penstemon attenuatus
(tree size 5)
Sulphur penstemon
Penstemon anguineus
Siskiyou beardtongue
Penstemon barrettiae
Barrett's beardtongue
Penstemon barnebyi
White river valley beardtongue
Penstemon bicolor
(tree size 2)
Pinto beardtongue
Penstemon canescens
Eastern gray beardtongue
Penstemon calcareus
Limestone beardtongue
Penstemon californicus
California penstemon
Penstemon centranthifolius
Scarlet bugler
Penstemon clutei
Sunset crater beardtongue
Penstemon clevelandii
(tree size 7)
Cleveland's beardtongue
Penstemon cinicola
Ash penstemon
Penstemon cyaneus
Blue penstemon
Penstemon debilis
Parachute beardtongue
Penstemon degeneri
Degener's beardtongue
Penstemon deustus
(tree size 4)
Scabland penstemon
Penstemon eatonii
(tree size 6)
Firecracker penstemon
Penstemon filiformis
Threadleaf beardtongue
Penstemon gibbensii
Gibbens' beardtongue
Penstemon floridus
(tree size 2)
Panamint beardtongue
Penstemon grahamii
Uinta basin beardtongue
Penstemon fruticiformis
(tree size 4)
Death valley beardtongue
Penstemon gracilentus
Slender penstemon
Penstemon haydenii
Blowout beardtongue
Penstemon grandiflorus
Large beardtongue
Penstemon grinnellii
(tree size 4)
Grinnell's beardtongue
Penstemon heterophyllus
(tree size 6)
Bunchleaf penstemon
Penstemon incertus
Mojave beardtongue
Penstemon janishiae
Antelope valley beardtongue
Penstemon labrosus
San gabriel beardtongue
Penstemon metcalfei
Metcalfe's beardtongue
Penstemon laetus
(tree size 8)
Mountain blue penstemon
Penstemon laevigatus
(tree size 1)
Eastern smooth beardtongue
Penstemon navajoa
Navajo mountain beardtongue
Penstemon monoensis
Mono penstemon
Penstemon neotericus
Plumas county beardtongue
Penstemon pachyphyllus
(tree size 3)
Thickleaf beardtongue
Penstemon newberryi
(tree size 7)
Mountain pride
Penstemon pahutensis
Paiute beardtongue
Penstemon parryi
Parry's beardtongue
Penstemon penlandii
Penland's beardtongue
Penstemon papillatus
Inyo beardtongue
Penstemon pinorum
Pine valley penstemon
Penstemon patens
Lone pine beardtongue
Penstemon personatus
Closethroat beardtongue
Penstemon pudicus
Kawich range beardtongue
Penstemon pseudospectabilis
(tree size 5)
Desert penstemon
Penstemon rhizomatosus
Scheel creek beardtongue
Penstemon purpusii
Snow mountain beardtongue
Penstemon roezlii
(tree size 1)
Roezl's penstemon
Penstemon rostriflorus
Bridge penstemon
Penstemon scariosus
(tree size 4)
White river beardtongue
Penstemon rupicola
Cliff beardtongue
Penstemon scapoides
Pinyon beardtongue
Penstemon speciosus
(tree size 2)
Royal penstemon
Penstemon spectabilis
(tree size 6)
Showy penstemon
Penstemon stephensii
Stephens' penstemon
Penstemon sudans
Susanville beardtongue
Penstemon thompsoniae
(tree size 2)
Thompson's beardtongue
Penstemon strictus
(tree size 2)
Rocky mountain penstemon
Penstemon thurberi
Thurber's penstemon
Penstemon tracyi
Trinity penstemon
Penstemon triflorus
(tree size 2)
Heller's beardtongue
Penstemon utahensis
Utah penstemon
Penstemon venustus
Venus penstemon
Penstemon azureus
(tree size 5)
Azure penstemon
Penstemon caesius
San bernardino beardtongue
Penstemon glaber
(tree size 3)
Sawsepal penstemon
Penstemon gormanii
Gorman's beardtongue
Penstemon pulchellus
Penstemon gracilis
(tree size 3)
Lilac penstemon
Penstemon marcusii
Marcus' beardtongue
Penstemon punctatus
Penstemon rotundifolius
Penstemon roseus
Penstemon miniatus
(tree size 4)
Penstemon hartwegii
Hartweg's beardtongue
Penstemon minor
Penstemon mohinoranus
Penstemon secundiflorus
(tree size 1)
Sidebells penstemon
Penstemon multiflorus
Mayflower beardtongue
Penstemon henricksonii
Penstemon seorsus
Shortlobe penstemon
Penstemon nitidus
(tree size 2)
Waxleaf penstemon
Penstemon amphorellae
Penstemon occiduus
Penstemon apateticus
(tree size 1)
Penstemon pallidus
Pale beardtongue
Penstemon atropurpureus
Penstemon compactus
Compact penstemon
Penstemon stenophyllus
Sonoran beardtongue
Penstemon baccharifolius
Baccharisleaf beardtongue
Penstemon stenosepalus
Penstemon hidalgensis
Penstemon tenuifolius
Penstemon dasyphyllus
Cochise beardtongue
Penstemon tepicensis
Penstemon pentstemon
Penstemon breviculus
Shortstem beardtongue
Penstemon perfoliatus
Penstemon brevisepalus
Penstemon duchesnensis
Penstemon pinifolius
Pineneedle beardtongue
Penstemon higginsii
Penstemon plagapineus
Penstemon hirsutus
Hairy beardtongue
Penstemon campanulatus
(tree size 3)
Bellflower beardtongue
Penstemon eximius
Penstemon pseudoputus
Kaibab plateau beardtongue
Penstemon imberbis
Penstemon violaceus
Penstemon fasciculatus
Penstemon incanus
Penstemon virgatus
(tree size 1)
Upright blue beardtongue
Penstemon fendleri
Fendler's penstemon
Penstemon wislizenii
Penstemon isophyllus
Penstemon jamesii
(tree size 1)
James' beardtongue
Penstemon kunthii
Penstemon filisepalis
Penstemon lanceolatus
Penstemon fruticosus
(tree size 3)
Shrubby penstemon
Penstemon lemhiensis
Lemhi penstemon
Penstemon galloensis
Penstemon gentianoides
Gentian beardtongue
Penstemon leonensis
Penstemon gentryi
Penstemon linarioides
(tree size 10)
Toadflax penstemon
Penstemon longiflorus
Longflower penstemon
Penstemon globosus
Globe penstemon
Penstemon luteus
Penstemon pandus
Penstemon tenuiflorus
Eastern whiteflower beardtongue
Penstemon eriantherus
(tree size 5)
Fuzzytongue penstemon
Penstemon franklinii
Franklin's penstemon
Penstemon humilis
(tree size 6)
Low beardtongue
Penstemon alluviorum
Lowland beardtongue
Penstemon davidsonii
(tree size 3)
Davidson's penstemon
Penstemon serrulatus
Serrulate penstemon
Penstemon kralii
Penstemon hintonii
Penstemon bolanius
Penstemon versicolor
Variable-color beardtongue
Penstemon saltarius
Penstemon pringlei
Penstemon potosinus
Penstemon moronensis
Penstemon moffattii
Penstemon tubiflorus
(tree size 1)
White wand beardtongue
Penstemon triphyllus
(tree size 1)
Riggin's penstemon
Penstemon tiehmii
Tiehm's beardtongue
Penstemon tidestromii
Tidestrom's beardtongue
Penstemon teucrioides
Germander beardtongue
Penstemon tenuis
Sharpsepal beardtongue
Penstemon superbus
Superb beardtongue
Penstemon subulatus
Hackberry beardtongue
Penstemon subserratus
Finetooth beardtongue
Penstemon subglaber
Smooth penstemon
Penstemon strictiformis
Mancos penstemon
Penstemon spatulatus
Wallowa beardtongue
Penstemon smallii
Small's beardtongue
Penstemon sepalulus
Littlecup beardtongue
Penstemon saxosorum
Upland beardtongue
Penstemon rydbergii
(tree size 4)
Rydberg's penstemon
Penstemon rubicundus
Wassuk range beardtongue
Penstemon richardsonii
(tree size 4)
Cutleaf beardtongue
Penstemon retrorsus
Adobe hills beardtongue
Penstemon rattanii
(tree size 5)
Rattan's beardtongue
Penstemon ramosus
Lanceleaf beardtongue
Penstemon radicosus
Matroot penstemon
Penstemon putus
Black river beardtongue
Penstemon pumilus
(tree size 2)
Salmon river beardtongue
Penstemon pseudoparvus
Mt. washington beardtongue
Penstemon pruinosus
Chelan beardtongue
Penstemon pratensis
Western whiteflower beardtongue
Penstemon platyphyllus
Broadleaf beardtongue
Penstemon perpulcher
(tree size 1)
Minidoka beardtongue
Penstemon pennellianus
Blue mountain beardtongue
Penstemon peckii
Peck's beardtongue
Penstemon paysoniorum
Payson's beardtongue
Penstemon payettensis
Payette beardtongue
Penstemon parvus
Aquarius plateau beardtongue
Penstemon parviflorus
Montezuma county beardtongue
Penstemon parishii
Penstemon ovatus
Eggleaf beardtongue
Penstemon petiolatus
Petiolate beardtongue
Penstemon osterhoutii
Osterhout's beardtongue
Penstemon ophianthus
Coiled anther penstemon
Penstemon oliganthus
Apache beardtongue
Penstemon oklahomensis
Oklahoma beardtongue
Penstemon neomexicanus
New mexico beardtongue
Penstemon nanus
Dwarf beardtongue
Penstemon murrayanus
Scarlet beardtongue
Penstemon moriahensis
Mt. moriah beardtongue
Penstemon montanus
(tree size 2)
Cordroot beardtongue
Penstemon mirus
Penstemon mensarum
Tiger beardtongue
Penstemon leptanthus
Sevier plateau beardtongue
Penstemon leonardii
(tree size 3)
Leonard's beardtongue
Penstemon nudiflorus
Flagstaff beardtongue
Penstemon lentus
(tree size 2)
Handsome beardtongue
Penstemon leiophyllus
(tree size 2)
Smoothleaf beardtongue
Penstemon laxus
Tufted penstemon
Penstemon laxiflorus
Nodding beardtongue
Penstemon laricifolius
(tree size 2)
Larchleaf beardtongue
Penstemon laevis
Southwestern beardtongue
Penstemon kingii
King's beardtongue
Penstemon jonesii
Penstemon miser
Malheur penstemon
Penstemon inflatus
Inflated beardtongue
Penstemon immanifestus
Steptoe valley beardtongue
Penstemon idahoensis
Idaho beardtongue
Penstemon havardii
Big bend beardtongue
Penstemon harringtonii
Harrington's beardtongue
Penstemon harbourii
Harbour's beardtongue
Penstemon hallii
(tree size 1)
Hall's beardtongue
Penstemon guadalupensis
(tree size 1)
Guadalupe beardtongue
Penstemon griffinii
Griffin's beardtongue
Penstemon goodrichii
Lapoint beardtongue
Penstemon glaucinus
Blueleaf beardtongue
Penstemon glandulosus
(tree size 2)
Stickystem penstemon
Penstemon fremontii
(tree size 3)
Fremont's beardtongue
Penstemon flowersii
Flowers' beardtongue
Penstemon floribundus
Cordillia's beardtongue
Penstemon flavescens
High mountain penstemon
Penstemon euglaucus
Glaucous beardtongue
Penstemon ellipticus
Rocky ledge penstemon
Penstemon elegantulus
Rockvine penstemon
Penstemon distans
Mt. tumbull beardtongue
Penstemon dissectus
Dissected beardtongue
Penstemon gairdneri
(tree size 5)
Gairdner's beardtongue
Penstemon diphyllus
Twoleaf beardtongue
Penstemon deaveri
Mt. graham beardtongue
Penstemon deamii
Deam's beardtongue
Penstemon cyathophorus
Sagebrush beardtongue
Penstemon cyanocaulis
Bluestem beardtongue
Penstemon cyananthus
(tree size 5)
Wasatch beardtongue
Penstemon cusickii
Cusick's beardtongue
Penstemon discolor
Cataiina beardtongue
Penstemon crideri
Penstemon crandallii
(tree size 8)
Crandall's beardtongue
Penstemon confusus
(tree size 3)
Owens valley beardtongue
Penstemon confertus
(tree size 2)
Yellow penstemon
Penstemon concinnus
Tunnel springs beardtongue
Penstemon comarrhenus
Dusty beardtongue
Penstemon caryi
Cary's beardtongue
Penstemon carnosus
Fleshy beardtongue
Penstemon cardwellii
Cardwell's beardtongue
Penstemon cardinalis
(tree size 3)
Cardinal beardtongue
Penstemon calycosus
Longsepal beardtongue
Penstemon caespitosus
(tree size 5)
Mat penstemon
Penstemon cobaea
(tree size 2)
Cobaea beardtongue
Penstemon bryantiae
Bryant's beardtongue
Penstemon bracteatus
Red canyon beardtongue
Penstemon australis
(tree size 2)
Eustis lake beardtongue
Penstemon auriberbis
Colorado beardtongue
Penstemon atwoodii
Kaiparowits beardtongue
Penstemon arkansanus
Arkansas beardtongue
Penstemon buckleyi
Buckley's beardtongue
Penstemon arenicola
Sand penstemon
Penstemon arenarius
Nevada sanddune beardtongue
Penstemon ammophilus
Sandloving penstemon
Penstemon albertinus
Alberta beardtongue
Penstemon alamosensis
Los alamos beardtongue
Penstemon aridus
Stiffleaf penstemon
Penstemon acaulis
Stemless beardtongue
Penstemon absarokensis
Absaroka range beardtongue
Penstemon abietinus
Firleaf beardtongue
Penstemon albidus
White penstemon
Penstemon wendtiorum
Penstemon vulcanellus
Penstemon vizcainensis
Penstemon yampaensis
Yampa beardtongue
Penstemon wrightii
Wright's beardtongue
Penstemon wilcoxii
Wilcox's penstemon
Penstemon whippleanus
Whipple's penstemon
Penstemon watsonii
Watson's penstemon
Penstemon washingtonensis
Washington beardtongue
Penstemon wardii
Ward's beardtongue
Penstemon virens
Front range beardtongue
Penstemon unilateralis
Oneside penstemon
Penstemon uintahensis
Uinta mountain beardtongue
Penstemon tusharensis
Tushar range beardtongue
Penstemon subg. dasanthera
(tree size 1)
Penstemon subg. penstemon
(tree size 19)
Penstemon lyallii
Lyall's beardtongue
Penstemon subg. dissecti
Penstemon subg. habroanthus
(tree size 2)
Penstemon subg. saccanthera
(tree size 4)
Penstemon albifluvis
Penstemon cinereus
Penstemon parvulus
Penstemon dubius
Penstemon peirsonii
Penstemon alpinus
Penstemon caeruleum
Penstemon tweedyi
Penstemon antirrhinoides
(tree size 1)
Penstemon microphyllus
Penstemon breviflorus
(tree size 1)
Penstemon cordifolius
Penstemon corymbosus
Penstemon lemmonii
Penstemon rothrockii
Penstemon jacintensis
Penstemon ternatus
(tree size 1)
Penstemon magnus
Penstemon caudatus
Penstemon militaris
Penstemon palustris
Penstemon pseudoprocerus
Penstemon torreyi
Penstemon desertipicti
Penstemon regalis
Penstemon geniculatus
Penstemon glabrescens
Penstemon procumbens
Penstemon heterander
Penstemon exsertus
Penstemon saliens
Penstemon whitedii
Penstemon austinii
Penstemon scouleri
Penstemon scrophularioides
Penstemon cephalophorus
Penstemon spinulosus
Penstemon obtusifolius
Penstemon exilifolius
Penstemon francisci-pennellii
Penstemon coloradoensis
Penstemon paysonii
Penstemon berryi
Penstemon sonomensis
Penstemon macranthus
Penstemon brachyanthus
Penstemon formosus
Penstemon modestus
Penstemon tolmiei
(tree size 3)
Penstemon connatifolius
Penstemon kleei
Penstemon aggregatus
Penstemon garrettii
Penstemon kennedyi
Penstemon pilifer
Penstemon gloxinioides
Penstemon jeffreyanus
Penstemon luculentus
Penstemon tubaeflorus
Penstemon ramaleyi
Penstemon bridgesii
Penstemon diffusus
Penstemon frutescens
Penstemon ×hybridus
Penstemon arizonicus
Penstemon glaucus
Penstemon cedrosensis
Penstemon nemorosus
Penstemon mexicanus
Penstemon helleri
Penstemon riparius
Penstemon moffatii
(tree size 1)
Penstemon mucronatus
Penstemon oreocharis
Penstemon menziesii
(tree size 1)
Penstemon reidmoranii
Penstemon curtiflorus
Penstemon salmonensis
Penstemon bleaklyi
Penstemon shastensis
Penstemon dugesii