Penstemon
Penstemon davidsonii
Penstemon fruticiformis
Penstemon acuminatus
Penstemon palmeri
Penstemon albidus
Penstemon fruticosus
Penstemon pinorum
Penstemon rostriflorus
Penstemon parryi
Penstemon serrulatus
Penstemon secundiflorus
Penstemon floridus
Penstemon procerus
Penstemon barbatus
Penstemon heterophyllus
Penstemon deustus
Penstemon caespitosus
Penstemon haydenii
Penstemon digitalis
Penstemon cyathophorus
Penstemon attenuatus
Penstemon rydbergii
Penstemon calcareus
Penstemon teucrioides
Penstemon calycosus
Penstemon penlandii
Penstemon strictus
Penstemon tubaeflorus
Penstemon watsonii
Penstemon ophianthus
Penstemon anguineus
Penstemon eriantherus
Penstemon whippleanus
Penstemon laetus
Penstemon comarrhenus
Penstemon eatonii
Penstemon yampaensis
Penstemon virens
Penstemon pennellianus
Penstemon venustus
Penstemon humilis
Penstemon cyaneus
Penstemon cinicola
Penstemon azureus
Penstemon utahensis
Penstemon cyanocaulis
Penstemon franklinii
Penstemon grandiflorus
Penstemon barnebyi
Penstemon arenicola
Penstemon californicus
Penstemon speciosus
Penstemon tracyi
Penstemon confertus
Penstemon triflorus
Penstemon debilis
Penstemon pinifolius
Penstemon smallii
Penstemon linarioides
Penstemon gracilentus
Penstemon roezlii
Penstemon monoensis
Penstemon stephensii
Penstemon caesius
Penstemon ambiguus
Penstemon gentianoides
Penstemon thurberi
Penstemon crandallii
Penstemon grahamii
Alpine penstemon
Penstemon filiformis
Penstemon personatus
Penstemon gairdneri
Penstemon bicolor
Penstemon spectabilis
Penstemon clutei
Penstemon pseudospectabilis
Penstemon tenuis
Penstemon breviculus
List of Penstemon species
Penstemon australis
Penstemon angustifolius
Penstemon thompsoniae
Penstemon barrettiae
Penstemon auriberbis
Penstemon rupicola
Penstemon albifluvis
Penstemon moffatii
Penstemon brevisepalus
Penstemon richardsonii
Penstemon canescens
Penstemon harringtonii
Penstemon newberryi
Penstemon centranthifolius
Penstemon albomarginatus
Penstemon cobaea
Penstemon pruinosus
Penstemon clevelandii
Penstemon heterodoxus
Penstemon hartwegii
Penstemon papillatus
Penstemon arkansanus
Penstemon multiflorus
Penstemon pachyphyllus
Penstemon rhizomatosus
Penstemon laevigatus
Penstemon degeneri
Penstemon metcalfei
Penstemon scariosus
Penstemon murrayanus
Penstemon gibbensii
Penstemon isophyllus
Penstemon pudicus
Penstemon purpusii
Penstemon hirsutus
Penstemon tenuiflorus
Penstemon grinnellii
Penstemon janishiae
Penstemon pallidus
Penstemon neotericus
Penstemon labrosus
Penstemon scapoides
Penstemon navajoa
Penstemon sudans
Penstemon incertus
Penstemon pahutensis
Penstemon patens
Showy beardtongue
Desert beardtongue
Foxglove beardtongue
Penstemon osterhoutii
Smooth beardtongue
Mojave beardtongue
Keckiella antirrhinoides
HMS Pentstemon
Graderia subintegra