Tanacetum vulgare |
Asteraceae tribe Anthemideae |
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common tansy |
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Habit | Coarse aromatic perennial from a stout rhizome, glabrous throughout, 4-15 dm. tall. | |
Leaves | Leaves numerous, 1-2 dm. long and nearly half as wide, usually sessile, pinnatifid, with winged rachis, the pinnae again pinnatifid, with broadly winged rachis, the pinnules often again toothed. |
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Flowers | Heads numerous, commonly 20-200, the inflorescence with a broad, rounded top, the disk about 5-10 mm. wide; involucre bracts imbricate, dry, the margins and tips papery; corollas all tubular, 5-toothed, yellow; pappus a minute crown. |
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Fruits | Achenes 5-ribbed, glandular. |
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Tanacetum vulgare |
Asteraceae tribe Anthemideae |
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Flowering time | July-October | |
Habitat | Roadsides, fields, shorelines, wastelots, and other disturbed, open areas at low to middle elevations. | |
Distribution | Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
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Origin | Introduced from Europe | |
Conservation status | Not of concern | |
Sibling taxa | ||
Web links |
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