Also found in: Thesaurus, Medical, Encyclopedia.
beard·tongueor beard-tongue (bîrd′tŭng′)
[After its bearded, tonguelike staminode.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Plants) a plant of the genus Penstemon
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
pen•ste•mon(pɛnˈsti mən, ˈpɛn stə mən)
any of numerous chiefly North American plants belonging to the genus Penstemon, of the figwort family, some species of which are cultivated for their showy, variously colored flowers. Also called beardtongue.
[< New Latin Pentstemon (1748), irreg. < Greek penta- penta- + stḗmōn thread]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.