| Bidens cernua L. | |||
| |||
| Family | Compositae — APG family: Asteraceae | ||
| Description | Stem simple or branched, glabrous or sparsely hairy; leaves simple, lanceolate- acuminate, sessile, coarsely serrate; heads drooping, solitary at ends of branches; outer involucral bracts lanceolate, leaflike, the inner broadly ovate, dark-streaked; ray flowers yellow (var. radiatus DC.) or lacking; achenes compressed, with 3—4 barbed bristles. | ||
| Ecology | Wet places; an introduced weed. Described from 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.