from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of numerous plants of the genus Penstemon, native to North America and eastern Asia, having opposite leaves, flowers with a usually two-lipped, variously colored corolla, and capsules containing many seeds. Also called beardtongue.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of the genus Penstemon, the beardtongues.
New Latin Pēnstēmōn, genus name : Greek pente, five; see penkwe in Indo-European roots + Greek stēmōn, thread; see stā- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From the genus name. (Wiktionary)