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tarweed
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Common tarweed (Madia elegans)
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Common tarweed (Madia elegans)
Common tarweed (Madia elegans)

tarweed

plant
Also known as: Madia
Written and fact-checked by
Britannica Editors
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History

tarweed, any sticky, hairy plant of the genus Madia of the family Asteraceae, consisting of about 18 species. They are native to western North and South America.

A few species are grown as garden plants for their yellow or brownish yellow flowers and strong odour. The madia oil plant (M. sativa) is raised in Chile for its oil content.

This article was most recently revised and updated by William L. Hosch.