Dictionary.com
Thesaurus.com

button snakeroot

American  

noun

  1. any composite plant of the genus Liatris, having narrow, alternate leaves and spikelike heads of rose-purple flowers.

  2. an eryngo, Eryngium yuccifolium, of the southeastern U.S., having bristly leaves and whitish flowers.


Etymology

Origin of button snakeroot

An Americanism dating back to 1765–75