Bidens beckii
| Bidens beckii | |
|---|---|
 | |
| 1913 illustration[1] | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Heliantheae |
| Subtribe: | Coreopsidinae |
| Genus: | Bidens |
| Species: | B. beckii |
| Binomial name | |
| Bidens beckii Torr. ex Spreng. | |
| Synonyms[2] | |
|
Megalodonta beckii (Torr. ex Spreng.) Greene | |
Bidens beckii (Beck's water-marigold)[3] is a species of flowering plant in the daisy family. It is native to Canada and the northern United States.[4][5][6]
Bidens beckii is an annual herb sometimes as much as to 200 cm (80 inches) tall. It produces numerous yellow flower heads containing both disc florets and ray florets. It grows emerging from stagnant or slow-moving water, with some of the leaves completely under water.[7]
References
- ↑ 1913 illustration from USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 3: 500
- ↑ The Plant List, Bidens beckii Torr. ex Spreng.
- ↑ "Bidens beckii". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 28 May 2015.
- ↑ Biota of North America Program 2014 county distribution map
- ↑ Scoggan, H. J. 1979. Dicotyledoneae (Loasaceae to Compositae). Part 4. 1117–1711 pp. In Flora of Canada. National Museums of Canada, Ottawa
- ↑ Roberts, M. L. 1985. The cytology, biology and systematics of Megalodonta beckii (Compositae). Aquat. Bot. 21: 99–110.
- ↑ Flora of North America, Bidens beckii Torr. ex Spreng.
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