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Penstemon / ˈ p ɛ n s t ɪ m ən /, [2] the beardtongues, is a large genus of roughly 280 species of flowering plants native to North America from northern Canada to Central America. . It is the largest genus of flowering plants endemic to North Ameri
Penstemon brevisepalus, commonly known as short-sepaled beardtongue, [1] is an herbaceous plant in the plantain family. It is a perennial that produces pale lavender flowers in late spring. It is native to the eastern United States, where it is restricted to the states of Kentucky, Tennessee, Virginia, and West Virginia. Its natural habitat is ...
Penstemon whippleanus, commonly known as dusky penstemon, [2] dusky beardtongue, [3] Whipple's penstemon, [4] or Whipple's beardtongue, [5] 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 ...
These 281 species of Penstemon are considered valid by both World Flora Online (WFO) and Plants of the World Online (POWO), with the exception of Penstemon grandiflorus. [1] [2] In both POWO and WFO, it is regarded as a synonym of Penstemon bradburyi.
The species as a whole has a wide range of flower colors from white to purple, including pink, violet, and greenish, but always lacking nectar guidelines. [5] [6] The flowers are held on the upper parts of flowering stems, but the outermost stems may bend to the ground giving the appearance of having flowers all the way down the plant. [7]
Spikes of pink, purple, or white flowers attract pollinators to this sun-loving plant. The blooms last for weeks in late spring to early summer. Make sure to buy a perennial type.
Penstemon crandallii, also known as Crandall's penstemon, is a species of penstemon that grows in western Colorado and small parts of New Mexico and Utah. It is a low growing plant with blue to purple flowers.
Penstemon australis has pink to rose-purple tubular flowers with two lips. The upper lip has two lobes while the lower one has three. [3] The nectar guides are dark purple. The inside of the flower is white-lanate, covered with woolly hairs. The flower is 20–25 mm (3 ⁄ 4 –1 in) long. Flowering occurs from March through June. [2]