Any of numerous plants of the genus Penstemon, native to North America, having opposite leaves, variously colored flowers with a usually two-lipped corolla, and capsules containing many seeds.
Any of a large genus (Penstemon) of chiefly North American plants of the figwort family, having five stamens, the fifth of which is bearded and sterile, and bearing tubular, showy, white, pink, red, blue, or purple flowers.
Origin of penstemon
From American Heritage Dictionary of the English Language, 5th Edition
- From the genus name.