grindelia(redirected from gumweed)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to gumweed: curlycup gumweed, poison oak
The dried leaves and flowering tops of Grindelia camporum, grindelia humilius, and G. squarrosa (family Compositae); used as an expectorant; a fluid extract has been used externally to treat rhus poisoning.
[David H. Grindel, German botanist, 1776-1836]