Tarweed Meaning

There are 2 meaning(s) for word Tarweed

Meaning 1 : any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock

    Synonyms : gum plant,  gumweed,  rosinweed
Meaning 2 : any of various resinous glandular plants of the genus Madia; of western North and South America