tarweed ![添加此单词到默认生词本](http://www1.dict.li/user/images/new_vocabulary.gif)
['tɑ:wi:d]
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tarweed[ noun ]- any of various resinous glandular plants of the genus Madia; of western North and South America
<noun.plant>
- any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock
<noun.plant>
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}.