Plants — 23,508 Species
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Long-sepal Beardtongue
Penstemon calycosus Small
Penstemon calycosus Small is a long-lived herbaceous perennial penstemon native to eastern North America with large showy pale lavender to violet flowers.
scarlet bugler
Penstemon centranthifolius (Benth.) Benth.
Penstemon centranthifolius is a red-flowered herbaceous beardtongue native to California and Baja California, growing in various dry habitats.
Cleveland's Beardtongue
Penstemon clevelandii A.Gray
Penstemon clevelandii is an herbaceous flowering plant native to southern California and Baja California, growing on rocky or sandy slopes.
cobaea beardtongue
Penstemon cobaea Nutt.
Penstemon cobaea Nutt. is a large-flowered North American beardtongue species adapted to dry plains habitats, grown in cultivation.
Yellow Beardtongue
Penstemon confertus Douglas
Penstemon confertus Douglas is a yellow-flowered tufted perennial found in open habitats in the Pacific Northwest of North America.
Davidson's Penstemon
Penstemon davidsonii Greene
Penstemon davidsonii is a low mat-forming evergreen subshrub native to western North America's sunny rocky mountain habitats, bearing large blue-lavender to purple showy flowers.
Hot Rock Penstemon
Penstemon deustus Douglas
Penstemon deustus Douglas is a western North American subshrub used in native landscaping and pollinator gardens.
foxglove beardtongue
Penstemon digitalis Nutt.
Penstemon digitalis Nutt. is a North American bearded tongue plant popular in cultivation, with notable cultivars like 'Husker Red'.
firecracker penstemon
Penstemon eatonii A.Gray
Penstemon eatonii, or firecracker penstemon, is a short-lived perennial wildflower native to the southwestern United States, adapted to hummingbird pollination.
Eggleaf Beardtongue
Penstemon ellipticus Coult. & Fisher
Penstemon ellipticus, or rocky ledge penstemon, is a low-growing purple-flowered plant native to rocky areas of northwestern North America.
Crested-tongue Beardtongue
Penstemon eriantherus Pursh
Penstemon eriantherus is a perennial flowering herb native to western North America, with five recognized varieties, that grows in dry open habitats.
Panamint Beardtongue
Penstemon floridus Brandegee
Penstemon floridus is a herbaceous flowering beardtongue native to deserts of Nevada and southern California.
Bush Penstemon
Penstemon fruticosus (Pursh) Greene
Penstemon fruticosus is a small semi-evergreen subshrub native to northwestern North America, with funnel-shaped pale purple or lavender flowers.
Gairdner's Beardtongue
Penstemon gairdneri Hook.
Penstemon gairdneri Hook. is a deciduous subshrub native to dry open habitats east of the Cascades in the Pacific Northwest.
Gentian Beardtongue
Penstemon gentianoides (Kunth) Poir.
Penstemon gentianoides is a shrubby perennial herb native to Mexico and Central America, used in Mexican traditional medicine.
Sawsepal Beardtongue
Penstemon glaber Pursh
Penstemon glaber, or sawsepal penstemon, is a herbaceous flowering penstemon native to the Rocky Mountains, popular in cultivation.
Slender Beardtongue
Penstemon gracilentus A.Gray
Penstemon gracilentus, or slender penstemon, is a long-lived perennial herb native to parts of three western U.S. states.
Lilac Penstemon
Penstemon gracilis Nutt.
Penstemon gracilis Nutt. (slender penstemon) is a perennial flowering plant native to central North America, grown for xeriscape gardening.
Grinnell's Beardtongue
Penstemon grinnellii Eastw.
Grinnell's beardtongue (Penstemon grinnellii Eastw.) is a endemic California perennial penstemon with purple-tinged white to violet tubular flowers.
Hall's Beardtongue
Penstemon hallii A.Gray
Penstemon hallii, or Hall's penstemon, is a small alpine penstemon endemic to Colorado, grown by alpine gardening enthusiasts.
Sierra Penstemon
Penstemon heterodoxus A.Gray
Penstemon heterodoxus A.Gray is a perennial herb with clustered dark purple-blue tubular flowers, growing upright or as a low spreading mat.
Bunchleaf Penstemon
Penstemon heterophyllus Lindl.
Penstemon heterophyllus is a perennial herb cultivated as an ornamental for low-water gardens, with colorful tubular flowers.
hairy beardtongue
Penstemon hirsutus (L.) Willd.
Penstemon hirsutus, or hairy beard-tongue, is a perennial flowering plant native to Canada and eastern US, growing in dry open habitats.
Low Beardtongue
Penstemon humilis Nutt. ex A.Gray
Penstemon humilis, low beardtongue, is a flowering subshrub or perennial herb native to the western United States.
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