Bidens amplissima

Bidens amplissima, also known as the Vancouver Island beggarticks,[2] is a species of flowering plant in the family Asteraceae. It is known only from Vancouver Island on the Pacific Coast of Canada, on the mainland of British Columbia, and in the nearby US State of Washington.[3] There are some reports of the plant also being found in Manitoba and Nebraska, but these are almost certainly introductions.[4][5][6][7]

Bidens amplissima
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Bidens
Species:
B. amplissima
Binomial name
Bidens amplissima
Greene
Synonyms[1]
  • Bidens cernua var. elata Torr. & A.Gray
  • Bidens elata (Torr. & A.Gray) Sherff

B. amplissima is an annual growing up to 120 cm (4 feet) tall. It produces numerous yellow flower heads containing both disc florets and ray florets.[8]

References
  1. The Plant List, Bidens amplissima Greene
  2. USDA, NRCS (n.d.). "Bidens amplissima". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 28 May 2015.
  3. Biota of North America Program 2014 county distribution map
  4. Ganders, F. R., B. Klinkenberg, and R. Klinkenberg. 2003. Taxonomy in conservation: The enigmatic Vancouver Island beggarticks. Davidsonia 14: 63–70.
  5. Electronic Atlas of the Flora of British Columbia, Bidens amplissima (vancouver island beggarticks) includes photos and British Columbia range map
  6. Burke Museum of Natural History and Culture, University of Washington, Bidens amplissima Page Author: Don Knoke Vancouver Island beggar ticks includes photos and Washington range map
  7. Fred Ganders 2003. British Columbia loses an endemic species: Bidens amplissima (Asteraceae) occurs also in Washington State. Botanical Electronic News No. 293 July 12, 2002
  8. Flora of North America, Bidens amplissima Greene, Pittonia. 4: 268. 1901.


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