تعريف rattlesnake master في الإنجليزية الإنجليزية القاموس.
Any of several plants, such as Eryngium yuccifolium of the eastern United States, supposedly effective against the venom of rattlesnakes and having narrow leaves with spiny margins and whitish flower heads. Also called button snakeroot
coarse prickly perennial eryngo of United States thought to cure rattlesnake bite