Noun: gumweed
- Any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock
"Cattle avoided the gumweed growing along the fence line";
- gum plant, tarweed, rosinweed
Derived forms: gumweeds
Type of: herb, herbaceous plant
Part of: genus Grindelia, Grindelia
Encyclopedia: Gumweed