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Bidens polylepis Blake. Midwestern Tickseeed-sunflower. Phen: Aug-Oct (-Nov). Hab: Marshes, wet meadows, ditches, bogs. Dist: DE, MD, IL, and MO south to GA, AL, FL (?), and TX (and adventive farther north); the pre-Columbian distribution is uncertain, and portions of the eastern range of the species may be only from expansion from a more midwestern distribution.

Origin/Endemic status: Native

Synonymy ⓘ: = C, FNA21, G, GrPl, GW2, Il, Mi, NE, NY, Oh3, Ok, Pa, RAB, S, SE1, Tat, Tn, Va, W; < Bidens aristosa (Michx.) Britton – Ar, K1, K3, K4, NcTx; > Bidens polylepis Blake var. polylepis – F, Sherff & Alexander (1955); > Bidens polylepis Blake var. retrorsa Sherff – F, Sherff & Alexander (1955)

Links to other floras: = Bidens polylepis - FNA21

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACW (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: FACW (taxonomic split from wetland indicator species)
  • Great Plains: FACW (taxonomic split from wetland indicator species)
  • Midwest: FACW (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: FACW (taxonomic split from wetland indicator species)

Heliophily ⓘ: 8

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷

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