Northeastern Asian Flora
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Bidens parviflora Willd.   (redirected from: Bidens pauciflora Poir.)
Family: Asteraceae
[Bidens messerschmidii Turcz. ex Ledeb., moreBidens pauciflora Poir.]
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  • Japan Flora
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Japan Flora: Stems 20-70 cm. long, often short-hairy; median leaves 2 or 3 times pinnately compound, short-hairy above, with longer hairs on nerves beneath, the petioles 2-3 cm. long, the leaflets pin- natcly divided and again pinnatilobed to pinnatiparted, or toothed, the ultimate segments oblong, about 2 cm. wide, acute; heads eligulate; outer involucral bracts herbaceous, 4 or 5, lanceolate, 4 mm. long in anthesis, 6-9 mm. long in fruit, gradually narrowed at apex, the chaff 10-12 mm. long in fruit; tubular florets 6-12; achenes linear, 13-16 mm. long, about 1 mm. wide, tetragonous, compressed, short-strigose, the awns 2, 3-35 mm. long. Sept.

Honshu (centr. distr. and westw.), Kyushu. Korea, Manchuria, China, and e. Siberia.

Bidens parviflora
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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