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Definition of Tarweed
1. Noun. Any of various resinous glandular plants of the genus Madia; of western North and South America.
Group relationships: Genus Madia, Madia
Specialized synonyms: Chile Tarweed, Madia Oil Plant, Madia Sativa, Melosa
Generic synonyms: Herb, Herbaceous Plant
Specialized synonyms: Chile Tarweed, Madia Oil Plant, Madia Sativa, Melosa
Generic synonyms: Herb, Herbaceous Plant
2. Noun. Any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock.
Exact synonyms: Gum Plant, Gumweed, Rosinweed
Group relationships: Genus Grindelia, Grindelia
Specialized synonyms: Grindelia Robusta, Curlycup Gumweed, Grindelia Squarrosa
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Genus Grindelia, Grindelia
Specialized synonyms: Grindelia Robusta, Curlycup Gumweed, Grindelia Squarrosa
Generic synonyms: Herb, Herbaceous Plant
Definition of Tarweed
1. n. A name given to several resinous-glandular composite plants of California, esp. to the species of Grindelia, Hemizonia, and Madia.
Definition of Tarweed
1. Noun. Any of various American flowering plants that have sticky leaves ¹
¹ Source: wiktionary.com
Definition of Tarweed
1. a flowering plant [n -S]
Medical Definition of Tarweed
1.