Rag·wort n. Bot. A name given to several species of the composite genus Senecio.
Note: ☞ Senecio aureus is the golden ragwort of the United States; Senecio elegans is the purple ragwort of South Africa.
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Senecio aureus
n : weedy herb of the eastern United States to Texas having
golden-yellow flowers; sometimes becomes invasive;
sometimes placed in genus Senecio [syn: golden groundsel,
golden ragwort, Packera aurea]