Noun | 1.button snakeroot - coarse prickly perennial eryngo of United States thought to cure rattlesnake biteEryngium yuccifolium, rattlesnake master, rattlesnake's masterperennial - (botany) a plant lasting for three seasons or moreEryngium, genus Eryngium - large genus of decorative plants with thistlelike flower heads; cosmopolitan in distribution | | 2.button snakeroot - coarse prickly perennial eryngo with aromatic roots; southeastern United States; often confused with rattlesnake masterEryngium aquaticumherb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pestsEryngium, genus Eryngium - large genus of decorative plants with thistlelike flower heads; cosmopolitan in distribution | | 3.button snakeroot - any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower headsgayfeather, gay-feather, snakeroot, blazing starwild flower, wildflower - wild or uncultivated flowering plantgenus Liatris, Liatris - genus of perennial North American herbs with aromatic usually cormous rootsdotted gayfeather, Liatris punctata - herb with many stems bearing narrow slender wands of crowded rose-lavender flowers; central United States and Canada to Texas and northern Mexicodense blazing star, Liatris pycnostachya - perennial of southeastern and central United States having very dense spikes of purple flowers; often cultivated for cut flowers |