Bidens pilosa, L.
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https://doi.org/10.5281/zenodo.293764 |
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https://treatment.plazi.org/id/90236A28-9D84-F482-F881-FE151C3F41BA |
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Plazi |
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Bidens pilosa |
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7. B. pilosa L. View in CoL , Sp. Pl. 832 (1753).
Like 6 but capitula 5-15 mm in diameter, longer than wide, at least in fruit; outer involucral bracts little longer than inner, greenish; receptacular scales shorter than the achenes; achenes 6—8(—12) mm, fusiform, papillose, glabrous except for a few erect setae on the ribs; bristles 2-3, erecto-patent. 2« = 72. Roadsides, cultivated ground and damp places. Naturalized, mainly in S.W. Europe. [Az Cz Hs Lu.] (South America.)
B. vulgata E. L. Greene , Pittonia 4: 72 (1899) has recently been recorded from France and Romania. It is like 6 but has 10-16, hispid-ciliate outer involucral bracts and achenes with the marginal bristles erect or patent in the lower | and deflexed in the upper |. It is a native of North America.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Bidens pilosa
| Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. 1976 |
B. pilosa
| L. 1753: 832 |