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Meaning of prairie button snakeroot

prai'rie but"ton snake'root

Pronunciation: [key]
  1. a stout composite plant, Liatris pycnostachya, of prairies in the central U.S., having showy, rose-purple flower heads in dense spikes. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.