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tarweed |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Tarweed \Tar"weed`\, n. (Bot.) A name given to several resinous-glandular composite plants of California, esp. to the species of {Grindelia}, {Hemizonia}, and {Madia}. From WordNet r 1.6 [wn]: tarweed n 1: any of various resinous glandular plants of the genus Madia; of western North and South America 2: 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}, {rosinweed}]
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