Search Result for "gumweed": 
Wordnet 3.0

NOUN (1)

1. any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock;
[syn: gumweed, gum plant, tarweed, rosinweed]


The Collaborative International Dictionary of English v.0.48:

gumweed \gumweed\ n. any of various Western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock. Syn: gum plant, tarweed, rosinweed, rosin-weed. [WordNet 1.5]
WordNet (r) 3.0 (2006):

gumweed n 1: any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock [syn: gumweed, gum plant, tarweed, rosinweed]