Bidens bipinnata
Bidens bipinnata is a common and widespread species of flowering plant in the family Asteraceae.
| Bidens bipinnata | |
|---|---|
 | |
| 1913 illustration[1] | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Bidens |
| Species: | B. bipinnata |
| Binomial name | |
| Bidens bipinnata L. 1753 | |
| Synonyms[2] | |
| |
Distribution
Its native range remains uncertain due to its global distribution, however prevailing thought places its origin in Asia and North America. It is most commonly called by the common name Spanish needles.[3][4][5][6][7][8]
Description
B. bipinnata's needle-like seeds. Each bearing three to four barbed spikes to facilitate propagation.
Bidens bipinnata is an annual herb up to 150 cm (60 inches) tall. It produces white or yellow flower heads each containing both disc florets and ray florets. The species grows in fields, forests, and disturbed sites such as road embankments and fallow agricultural areas.[9][10][11]
A yellow B. bipinnata flower blooming in mid-October in Texas.
References
- from 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
- The Plant List, Bidens bipinnata L.
- Dodson, C.H. & A.H. Gentry. 1978. Flora of the Río Palenque Science Center: Los Ríos Province, Ecuador. Selbyana 4(1–6): i–xxx, 1–628
- Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of species of southern African plants. Memoirs of the Botanical Survey of South Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2).
- Biota of North America Program 2014 county distribution map
- Humbert, H. 1923. Les Composées de Madagascar. Mémoires de la Société Linnéenne de Normandie 25: 1–335
- Schwegman, J. E. 1991. The Vascular Flora of Langham Island, Kankakee County, Illinois. Erigenia 11: 1–8
- Stevens, W. D., C. Ulloa Ulloa, A. Pool & O. M. Montiel. 2001. Flora de Nicaragua. Monographs in Systematic Botany from the Missouri Botanical Garden 85: i–xlii,.
- Flora of North America, Bidens bipinnata Linnaeus, Sp. Pl. 2: 832. 1753.
- Flora of China, 婆婆针 po po zhen, Bidens bipinnata Linnaeus, Sp. Pl. 2: 832. 1753.
- Altervista Flora Italiana, Forbicina con foglie bipennate, Bidens bipinnata L. includes photos and European distribution map
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