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Bidens amplissima
Also called Vancouver Island Burr Marigold
Bidens amplissima, also known as the Vancouver Island beggarticks, is a wetland annual species in the sunflower family, Asteraceae that is listed as Special Concern in Canada and has a limited global range. More than 85% of known populations occur in southwestern British Columbia, with the remainder in northwestern Washington. Bidens amplissima occurs across a remarkable range of environmental conditions, both along the edges of freshwater ponds and under saline conditions in estuaries. Bidens amplissima displays a broad range of morphological variation and overlaps in morphological characteristics with two closely related and occurring species, B. cernua and B. tripartita.
Bidens amplissima has a limited global range. More than 85% of known populations occur in southwestern British Columbia, with the remainder in northwestern Washington.
Bidens acrifolia · Bidens acuticaulis · Romerillo · Kokolau · Bearded beggarticks · Arizona beggarticks · Beck's water-marigold · Delmarva beggarticks · Bigelow's beggarticks · Spanish needles · Bidens cabopulmensis · Viper beggarticks
Text excerpted from the Wikipedia article Bidens amplissima by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
