Penstemon parryi, the Parry's penstemon, Parry's beardtongue or desert penstemon, is a wildflower native to the Sonoran Desert of Southern Arizona and northern Mexico. It is a perennial that blooms in March and April. In the wild, plants flower in their second year. In cultivation, flowering is often achieved in the first year if seed is planted in the autumn.
Penstemon digitalis is a species of flowering plant in the plantain family, Plantaginaceae. The flowers are white and are borne in summer. It is native to eastern Canada and the eastern and southeastern United States. Penstemon digitalis is the most widespread species of Penstemon east of the Mississippi River.
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 spectabilis is a species of penstemon known by the common name showy penstemon or showy beardtongue. It is a perennial herb native to southern California and Baja California, where it grows in the chaparral, scrub, and woodlands of the coastal mountain ranges.
Penstemon utahensis is a species of penstemon known by the common names Utah beardtongue and Utah penstemon. It is native to the southwestern United States, where it grows in scrub, woodland, and canyons. It is a perennial herb growing erect to a maximum height near half a meter. The thick leaves are located around the base of the plant and in opposite pairs along the stem. The upper leaves are lance-shaped and often folded lengthwise, measuring up to 5.5 centimeters long. The showy inflorescence bears many bright red-pink flowers up to 2.5 centimeters in length. They are cylindrical, tubular, or funnel-shaped with wide, lobed mouths, and mostly hairless to slightly hairy and glandular.
Penstemon grandiflorus, known by the common names shell-leaved penstemon, shell-leaf beardtongue, or large-flowered penstemon, is a tall and showy plant in the Penstemon genus from the plains of North America. Due to its large flowers it has found a place in gardens, particularly ones aimed at low water usage like xeriscape gardens.
Penstemon scariosus is a species of flowering plant in the plantain family known by the common name White River beardtongue. It is native to Colorado, Utah, and Wyoming in the United States.
Penstemon canescens is a species of penstemon in the family Plantaginaceae. P. canescens is known by the common names Eastern gray beardtongue or Appalachian beardtongue. It is native to woodlands, forest edges, and roadsides of the southeastern United States and flowers May through July. It is a perennial herb producing stems reaching one meter in maximum height. Penstemon canescens has been used by Native Americans for thousands of years.
Penstemon angustifolius is a perennial semi-evergreen forb belonging to the plantain family. This species is 1 out of roughly 273 species of Penstemon. This species is also known as broadbeard beardtongue. This forb is native to central United States and can be noticed by its brightly and highly variable colored flowers.
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 humilis is a species of flowering plant in the plantain family known by the common names low beardtongue and lowly beardtongue. It is native to the western United States.
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.
Penstemon davidsonii is a species of penstemon known by the common name Davidson's penstemon, honoring Dr. George Davidson. It is native to western North America.
Penstemon cobaea is a flowering plant in the plantain family, commonly known as cobaea beardtongue, prairie beardtongue or foxglove penstemon. The plant is native to the central United States, primarily the Great Plains from Nebraska to Texas, with additional populations in the Ozarks of Missouri and Arkansas. There are also populations reported in the southwestern United States as well as in Illinois and Ohio, but these appear to be introductions.
Penstemon murrayanus is a species of flowering plant in the plantain family known by the common name scarlet beardtongue. It is endemic to Texas, Louisiana, Oklahoma, and Arkansas in the United States. The specific name murrayanuss honors Johann Andreas Murray, a Swedish botanist, and the common name "scarlet beardtongue" references the plant's scarlet flowers.
Penstemon tenuis is a species of flowering plant in the plantain family known by the common name sharpsepal beardtongue. It is endemic to Texas, Louisiana, Mississippi, and Arkansas in the United States where it is found in open, damp areas in alluvial soil. It typically flowers from early April into early June.
Penstemon pennellianus, often called the Blue Mountain beardtongue or Blue Mountain penstemon, is a species of beardtongue native to Washington and Oregon.
Penstemon whippleanus, commonly known as dusky penstemon, dusky beardtongue, Whipple's penstemon, or Whipple's beardtongue, is a summer blooming perennial flower in the large Penstemon genus. It is a widespread plant within the hemiboreal forests of the Rocky Mountains in North America. It is noted for the large deep purple-red flowers and a preference for high mountain elevations.
Penstemon albidus, commonly known as white penstemon, white-flower beardtongue, or Red-Line Beardtongue is a very widespread perennial flower of the mixed-grass and shortgrass prairies. Its natural distribution is from Manitoba and Alberta in Canada to Texas and New Mexico in the United States. The bright white flowers for which they are named are quite attractive to both bees and hummingbird moths.
