Cleveland's Beardtongue
Penstemon clevelandii var. mohavensis
Calscape.org
Calscape.org
Davidson's Penstemon
Penstemon davidsonii
Calscape.org
Davidson's Penstemon
Penstemon davidsonii var. davidsonii
Calscape.org
Scabland Penstemon
Penstemon deustus
Calscape.org
Scabland Penstemon
Penstemon deustus var. deustus
Calscape.org
Hot Rock Beardtongue
Penstemon deustus var. pedicellatus
Calscape.org
Scabland Penstemon
Penstemon deustus var. suffrutescens
Calscape.org
Firecracker Penstemon
Penstemon eatonii
Calscape.org
Eaton's Penstemon
Penstemon eatonii var. eatonii
Calscape.org
Eaton's Penstemon
Penstemon eatonii var. undosus
Calscape.org
Thread-leaved Beardtongue
Penstemon filiformis
Calscape.org
Panamint Beardtongue
Penstemon floridus
Calscape.org
Austin's Beardtongue
Penstemon floridus var. austinii
Calscape.org
Rose Penstemon
Penstemon floridus var. floridus
Calscape.org
Desert Beardtongue
Penstemon fruticiformis
Calscape.org
Amargosa Beardtongue
Penstemon fruticiformis var. amargosae
Calscape.org
Desert Beardtongue
Penstemon fruticiformis var. fruticiformis
Calscape.org
Slender Penstemon
Penstemon gracilentus
Calscape.org
Grinnell's Beardtongue
Penstemon grinnellii
Calscape.org
Grinnell's Beardtongue
Penstemon grinnellii var. grinnellii
Calscape.org
Grinnell's Beardtongue
Penstemon grinnellii var. scrophularioides
Calscape.org
Sierra Beardtongue
Penstemon heterodoxus
Calscape.org
Sierra Beardtongue
Penstemon heterodoxus var. cephalophorus
Calscape.org
Sierra Beardtongue
Penstemon heterodoxus var. heterodoxus
Calscape.org
Shasta Beardtongue
Penstemon heterodoxus var. shastensis
Calscape.org
Blue Gem Foothill Penstemon
Penstemon heterophyllus 'Blue Gem'
Calscape.org
Blue Springs Foothill Penstemon
Penstemon heterophyllus 'Blue Springs'
Calscape.org
Margarita BOP Penstemon
Penstemon heterophyllus 'Margarita BOP'
Calscape.org
Southern Foothill Penstemon
Penstemon heterophyllus var. australis
Calscape.org
Foothill Penstemon
Penstemon heterophyllus var. heterophyllus
Calscape.org
Purdy's Foothill Penstemon
Penstemon heterophyllus var. purdyi
Calscape.org
Low Beardtongue
Penstemon humilis
Calscape.org
Low Beardtongue
Penstemon humilis var. humilis
Calscape.org
Western Desert Penstemon
Penstemon incertus
Calscape.org
Antelope Valley Beardtongue
Penstemon janishiae
Calscape.org
San Gabriel Beardtongue
Penstemon labrosus
Calscape.org
Mountain Blue Penstemon
Penstemon laetus
Calscape.org
Mountain Blue Penstemon
Penstemon laetus var. laetus
Calscape.org
Mountain Blue Penstemon
Penstemon laetus var. leptosepalus
Calscape.org
Mountain Blue Penstemon
Penstemon laetus var. sagittatus
Calscape.org
Mono Penstemon
Penstemon monoensis
Calscape.org
Derived Penstemon
Penstemon neotericus
Calscape.org
Mountain Pride
Penstemon newberryi
Calscape.org
Berry's Mountain Pride
Penstemon newberryi var. berryi
Calscape.org
Newberry's Penstemon
Penstemon newberryi var. newberryi
Calscape.org
Sonoma Beardtongue
Penstemon newberryi var. sonomensis
Calscape.org
St. Helena Sonoma Beardtongue
Penstemon newberryi var. sonomensis 'St. Helena'
Calscape.org
Pahute Beardtongue
Penstemon pahutensis
Calscape.org
Penstemon Hybrid
Penstemon palmeri 'Hybrid'
Calscape.org
Inyo Beardtongue
Penstemon papillatus
Calscape.org
Small Penstemon
Penstemon parvulus
Calscape.org
Lone Pine Beardtongue
Penstemon patens
Calscape.org
Closed-throated Beardtongue
Penstemon personatus
Calscape.org
Small Flowered Penstemon
Penstemon procerus
Calscape.org
Small Flowered Penstemon
Penstemon procerus var. brachyanthus
Calscape.org
Western Small Flowered Penstemon
Penstemon procerus var. formosus
Calscape.org
Desert Penstemon
Penstemon pseudospectabilis
Calscape.org
Snow Mountain Beardtongue
Penstemon purpusii
Calscape.org
Rattan's Beardtongue
Penstemon rattanii
Calscape.org
Santa Cruz Mountains Beardtongue
Penstemon rattanii var. kleei