"rattlesnake weed." YourDictionary, n.d. Web. 19 October 2018. <http://www.yourdictionary.com/rattlesnake-weed>.
rattlesnake weed. (n.d.). Retrieved October 19th, 2018, from http://www.yourdictionary.com/rattlesnake-weed
Any of various plants thought to be effective against the venom of rattlesnakes, such as the North American hawkweed Hieracium venosum, or thought to resemble rattlesnakes, such as the betony Stachys floridana, having roots resembling rattles.