Bidens tripartita
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Bidens tripartita is a common and widespread species of flowering plant in the sunflower family, Asteraceae, commonly known as three-lobe beggarticks,[1] three-part beggarticks, leafy-bracted beggarticks or trifid bur-marigold. It is native to much of Eurasia, North Africa, and North America, with naturalized populations in Australia and on some Pacific Islands.[2][3][4][5][6]
Distribution and abundance
Bidens tripartita is native to much of Eurasia, North Africa, and North America, with naturalized populations in Australia and on some Pacific Islands.[2][3][4][5][6] Bidens tripartita is considered relatively rare in southwestern British Columbia and was likely introduced from eastern North America and Europe.[7]
Morphology
Bidens tripartita is an annual species with rigid stems and fibrous roots. Leaves are often deeply lobed. Flower heads are discoid and lacking ray flowers. Fruits are achenes.[7]
Subspecies and varieties
- Bidens tripartita subsp. bullatus (L.) Rouy
- Bidens tripartita var. repens (D.Don) Sherff
- Bidens tripartita subsp. tripartita
- Bidens tripartita var. tripartita[8]
Photo gallery
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References
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- ↑ a b Flora of China, 狼杷草 lang pa cao, Bidens tripartita Linnaeus, Sp. Pl. 2: 831. 1753
- ↑ a b Altervist Flora Italiana, Forbicina comune, Bidens tripartita L. includes photos, drawings, European distribution map
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External links
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