Penstemon bicolor is a species of penstemon known by the common name pinto beardtongue. It is native to the desert mountains and valleys of southern Nevada, eastern California, and western Arizona, where it grows in scrub, woodland, and other local habitat. It is a perennial herb which may exceed one meter in maximum height. The thick, serrated leaves are oppositely arranged and some pairs are fused around the stem at the bases. The inflorescence produces tubular flowers around 2 to nearly 3 centimeters long in many shades of yellow and pink, usually with striping in the throats. The flower's throat is hairy and the staminode just inside is coated in long yellowish hairs.
Penstemon californicus is a species of penstemon known by the common name California penstemon. It is native to Baja California and is also known from fewer than 20 occurrences in California, mainly in Orange and Riverside Counties. It grows in the forest and woodland habitat of the Peninsular Ranges and nearby slopes. This is a perennial herb with many spreading or upright branches 30 centimeters in maximum height. The leaves are no more than 1.5 centimeters long with linear or lance-shaped blades borne on petioles. The inflorescence produces tubular flowers between 1 and 2 centimeters long, purple to blue in color with dark-striped white throats containing hairy staminodes.
Penstemon centranthifolius is a species of penstemon known by the common name scarlet bugler. It is native to California and parts of Mexico, where it grows in many types of dry habitat from coast to desert, such as chaparral and oak woodland.
Penstemon cinicola is a species of penstemon known by the common name ash penstemon. It is native to northeastern California and southern Oregon, where it grows in forests and plateau habitat. It is a perennial herb with upright branches 40 centimeters (16 in) maximum height. The leaves are 3 to 6 centimeters long, linear in shape, folded lengthwise, and curved backwards. The inflorescence produces tubular flowers with wide lipped mouths. The flower is blue-purple in color, just under one centimeter long, and hairless except for hairs on the floor of the mouth and on the staminode.
Penstemon eatonii is a species of flowering plant in the genus Penstemon, known by the common names Eaton's penstemon and firecracker penstemon. It is native to the Western United States from Southern California to the Rocky Mountains. It grows in many types of desert, woodland, forest, and open plateau habitat.
Penstemon gracilentus is a species of penstemon known by the common names slender beardtongue and slender penstemon. It is native to the mountains and sagebrush plateau of northeastern California, western Nevada, and southern Oregon, where it grows in forest, woodland, and scrub habitat. It is a perennial herb producing upright branches to about 65 centimeters in maximum height, the stems developing woody bases. The leaves are up to 10 centimeters in length and linear or lance-shaped. The glandular inflorescence produces several tubular purple flowers up to 2 centimeters long. The mouth of each flower may be hairless or coated in long hairs, and the staminode usually has a coat of yellow hairs.
Penstemon heterophyllus is a species of penstemon known by the common names bunchleaf penstemon, foothill penstemon, and foothill beardtongue. It is endemic to California.
Penstemon labrosus is a species of penstemon known by the common name San Gabriel beardtongue. It is native to the Transverse Ranges of southern California, including the San Gabriel Mountains, and the Peninsular Ranges to the south, its distribution extending into Mexico. It grows in forest and woodland habitat. It is a perennial herb growing erect to about 70 centimeters tall. The long, paired leaves are linear in shape with rolled, untoothed edges, and reach over 8 centimeters in maximum length. The inflorescence produces bright red to orange or yellowish flowers 3 to 4 centimeters long. The upper lip is hood-shaped and the lower is divided into 3 narrow lobes which are sometimes reflexed. The flower is hairless, including the staminode.
Penstemon laetus is a species of penstemon known by the common names mountain blue penstemon and gay penstemon. It is native to the inland mountains of Oregon and California, where its distribution extends from the Klamath Mountains through the Sierra Nevada to the Transverse Ranges. It grows in forest, scrub, and other local mountain habitat. It is a perennial herb growing erect to about 75 centimeters tall, its base becoming woody. The leaves are linear to lance-shaped and up to 10 centimeters long. The glandular inflorescence bears blue or purple flowers up to 3.5 centimeters long. The wide-mouthed tubular or funnel-shaped flower is glandular on the outer surface and mostly hairless on the inside.
Penstemon newberryi is a species of penstemon known by the common name mountain pride or Newberry's penstemon. It is native to the mountains of northern California, Oregon, and Nevada, where it grows in rocky habitat, often at high elevation, such as talus. It is a bushy, mat-forming subshrub growing up to 30 centimeters tall. The leaves are mostly basal on the plant, oblong or oval and toothed, measuring 1 to 4 centimeters in length, with a few smaller pairs along the stem. The glandular inflorescence bears showy magenta flowers 2 to over 3 centimeters in length. The flower is generally tubular or funnel-shaped and has a coating of short to long and curly hairs in the mouth and on the staminode.
Penstemon patens is a species of penstemon known by the common name Lone Pine beardtongue. It is native to the central Sierra Nevada of California and slopes and plateau to the east, its distribution extending just into Nevada. It grows in forest, woodland, and scrub habitat types. It is a perennial herb producing hairless, waxy stems up to about 40 centimeters tall. The thick, lance-shaped, gray-green, opposite leaves are up to 9 centimeters long and 2 wide. There are usually many leaves clustered around the base of the plant and smaller pairs higher on the stem. The inflorescence bears wide-mouthed tubular flowers up to 2 centimeters long with corollas in shades of lavender to magenta. The flower is mostly hairless except for the staminode which may have a coat of orange or yellowish hairs.
Penstemon pseudospectabilis a species of penstemon. It's native to the southwestern United States, where it grows in desert and plateau habitat types, such as sandy washes, scrub, and woodland. The plant is generally a shrub growing to one meter, with many erect stems. The thin leaves are oval with wide, pointed tips and serrated edges. They are arranged oppositely in pairs, many are completely fused at the bases about the stem, forming a disc. The inflorescence bears tubular flowers with expanded, lobed mouths and glandular hairs on most surfaces, except the hairless staminode. The flower grows to 2.5 centimeters and is reddish pink.
Penstemon roezlii is a species of penstemon known by the common name Roezl's penstemon. It is native to Oregon, western Nevada, and adjacent sections of northern California, including the Klamath Mountains and Sierra Nevada, where it grows in sagebrush and forest habitat types. It is a hairy, erect perennial herb growing to a maximum height of 55 centimeters from a woody, branching base. The leaves are up to 7 centimeters long, linear to widely lance-shaped and often folded lengthwise. The glandular inflorescence bears wide-mouthed tubular flowers up to 2.2 centimeters long in shades of blue-purple. The flowers are mostly hairless except for thin glandular hairs on the outer surfaces.
Penstemon rostriflorus is a species of penstemon known by the common names beaked penstemon, Bridge penstemon, or Bridges' penstemon.
Penstemon rupicola is a species of penstemon known by the common names cliff beardtongue or rock penstemon. It is native to the west coast of the United States from Washington to the Klamath Mountains of far northern California, where it grows in rocky mountainous habitat. It is a clumpy, mat-forming subshrub growing no more than 14 centimeters high. The thick, waxy, oppositely arranged leaves are round or oval and up to 2 centimeters long. The showy wide-mouthed tubular flowers emerging from the mat may be nearly 4 centimeters in length and are shades of light purple to bright pink.
Penstemon sudans is a species of penstemon known by the common name Susanville beardtongue. It is native to northern Nevada and northeastern California, especially in the vicinity of Susanville, where it grows in scrub and forest habitat, often in rocky soils. It is a glandular, sticky perennial herb growing erect to a maximum height over half a meter. The toothed, oval leaves are 3 to 6 centimeters long. The inflorescence bears tubular flowers with wide mouths each divided into a double-lobed upper lip and a triple-lobed lower lip, the whole flower about a centimeter in length. It is cream-colored with dark-red lines.
Penstemon thurberi is a species of penstemon known by the common names Thurber's beardtongue and Thurber's penstemon. It is native to the southwestern United States and northern Mexico, where it grows in many types of desert and mountain habitat, including sandy flats, chaparral, scrub, and woodlands. It is a shrub growing erect and somewhat rounded in form, reaching around 80 centimeters in maximum height. Many slender stems emerge from its woody base. The leaves are narrow, linear in shape, with edges rolled upward nearly into a tube. The long inflorescence bears funnel-shaped lavender, pink, or pale blue-purple flowers up to 1.5 centimeters in length.
Penstemon attenuatus is a species of flowering plant in the plantain family known by the common names sulphur penstemon and taperleaf beardtongue. It is native to the northwestern United States.
Penstemon cyaneus is a species of flowering plant in the plantain family known by the common names blue penstemon and dark-blue beardtongue. It is native to the western United States, where it is widespread in Idaho, Montana, and Wyoming.
Penstemon eriantherus is a species of flowering plant in the plantain family known by the common names fuzzytongue penstemon and crested beardtongue. It is native to western North America, where it occurs in western Canada and the northwestern and north-central United States.
