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Any of several plants of the genera Dracocephalum and Physostegia in the mint family, having terminal spikes of rose-pink or purplish flowers.
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.
1. (Plants) any plant of the genus Dracocephalum, of Europe, Asia, and North America, having dense spikes of white or bluish flowers: family Lamiaceae (labiates)
2. (Plants) any North American plant of the related genus Physostegia, having pink or purplish flowers
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
also dragon's head
any of several mints of the genus Dracocephalum having spikes of double-lipped flowers.
[1500–10; translation of New Latin Dracocephalum]
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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|Noun||1.||dragonhead - American herb having sharply serrate lanceolate leaves and spikes of blue to violet flowers|
herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
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