any of various plants of the genus Eryngium, especially E. yuccifolium, having spiny leaves and dense, rounded flower heads.
any of several other plants, especially of the genus Liatris.
Origin of rattlesnake master
An Americanism dating back to 1800–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019