'Penstemon' definitions:

Definition of 'Penstemon'

(from WordNet)
noun
Large genus of subshrubs or herbs having showy blue or purple or red or yellow or white flowers; mostly western North America [syn: Penstemon, genus Penstemon]

Definition of 'Penstemon'

From: GCIDE
  • Penstemon \Penstemon\ prop. n. A large genus of subshrubs or herbs having showy blue or purple or red or yellow or white flowers; found mostly in Western North America.
  • Syn: genus Penstemon. [WordNet 1.5]