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or 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


(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.
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References in periodicals archive ?
False sunflower Heliopsis helianthoides (L.) Sweet Foxglove beardtongue Penstemon digitalis Nutt.
Based on seasonal availability, plants could include: Wild Geranium, Large Beard-tongue, Foxglove Beardtongue, Fall Phlox, Sweet William, Creeping Phlox, Turk's Cap Lily, Swamp Milkweed (to host Monarch butterflies), New England aster, Switchgrass, Big Bluestem grass, Black-eyed Susan, Jewelweed, Woolly Ragwort, Blue Waxweed, Purple Tridens grass, spearmint, peppermint, oregano, and sage.
Scrophulariaceae Penstemon Foxglove Robertson 1929 digitalis beardtongue Nutt.