Bidens hyperborea

Bidens hyperborea (common names estuary beggarticks,[3] northern beggar-ticks[4] or estuary bur-marigold)[5] is a coastal species of flowering plant in the daisy family. It grows along the coasts of Hudson Bay, the Arctic Ocean, and the North Atlantic Ocean in eastern Canada (Labrador,[6] Nunavut, Ontario, Quebec, New Brunswick, Nova Scotia) and the northeastern United States (Maine, New Hampshire, Massachusetts, New York).[7]

Bidens hyperborea
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Bidens
Species:
B. hyperborea
Binomial name
Bidens hyperborea
Greene
Synonyms[1][2]
  • Bidens colpophila Fernald & H.St.John
  • Bidens hyperborea var. arcuans Fernald
  • Bidens hyperborea var. cathancensis Fernald
  • Bidens hyperborea var. colpophila Fernald
  • Bidens hyperborea var. gaspensis Fernald
  • Bidens hyperborea var. laurentiana Fassett
  • Bidens hyperborea var. svensonii Fassett

Bidens hyperborea is an annual herb up to 70 cm (28 inches) tall. It produces yellow flower heads sometimes one at a time, sometimes 2 or 3, each containing both disc florets and (usually) ray florets. The species grows in salt marshes and along the banks of marine estuaries.[8][9]

References
  1. The Plant List, Bidens hyperborea Greene
  2. Fernald, Merritt Lyndon 1918. Rhodora 20(236): 146-150
  3. "Bidens hyperborea". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 29 May 2015.
  4. Go Botany, New England Wildflower Society, Bidens hyperborea Greene, northern beggar-ticks
  5. Maine Department of Agriculture, Conservation and Forestry, Maine Natural Areas Program, Bidens hyperborea Greene, Estuary Bur-marigold
  6. Pan-arctic flora, 861301 Bidens hyperborea Greene
  7. Biota of North America Program 2014 state-level distribution map
  8. Flora of North America, Bidens hyperborea Greene, Pittonia. 4: 257. 1901.
  9. Greene, Edward Lee 1901. Pittonia 4(24B): 257–258


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