- a hawkweed, Hieracium venosum, of eastern North America, whose leaves and root are thought to possess medicinal properties.
- a carrotlike weed, Daucus pusillus, of southern and western North America.
- any of certain other plants, as an umbelliferous plant, Eryngium aquaticum.
- rattlesnake plantain.
Origin of rattlesnake weed
An Americanism dating back to 1750–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018