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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.
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
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]
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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