| Bidens frondosa L. | |||
| |||
| Family | Compositae — APG family: Asteraceae | ||
| Description | Stem erect, branching, nearly glabrous; leaves with 3-5 lanceolate, acuminate, coarsely toothed, sparsely hispidulous leaflets, the terminal slenderly petiolulate; rays of marginal flowers lacking; outer involucral bracts narrow, glabrous, the inner oblong, obtuse; disk flowers orange; achenes with 2 stout, erect awns. | ||
| Ecology | Shores, waste places; an introduced weed. Described from North America. In- troduced also in Europe. |
This is a digital representation of Eric Hultén’s ‘Flora of Alaska and Neighboring Territories: A Manual of the Vascular Plants’, which was published by Stanford University Press in 1968. The book was digitized by C. Webb (at UAMN) as part of the Flora of Alaska project, with funding by the US NSF (Grant 1759964 to Ickert-Bond & Webb), and with permission of Stanford University Press. Data and images © 1968 Board of Trustees of the Leland Stanford Jr. Univ. Usage licence: Creative Commons BY-NC-SA 4.0. NB: You may find OCR errors; please refer to the hard-copy if in doubt.