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Any of various plants of the genus Prenanthes of the composite family, having bitter-tasting tuberous roots and clusters of white to purple usually nodding flower heads.
[From the belief that the root cured a rattlesnake's bite.]
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.
any of certain composite plants of the genus Prenanthes, whose roots or tubers have been regarded as a remedy for snake bites, as P. serpentaria or P. alba.
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.||rattlesnake root - herb of central and southern Europe having purple florets|
genus Prenanthes, Prenanthes - genus of North American and Asiatic perennial herbs having pinnatisect leaves small heads of drooping yellowish to purple flowers; sometimes includes species often placed in genus Nabalus
|2.||rattlesnake root - a plant of the genus Nabalus|
genus Nabalus, Nabalus - genus of North American and east Asian perennial herbs; sometimes included in genus Prenanthes
cankerweed, Nabalus alba, Prenanthes alba, white lettuce - herb of northeastern North America having drooping clusters of yellowish-white flowers; sometimes placed in genus Prenanthes
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