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*Polygonum aviculare Linnaeus ssp. aviculare . Knotweed. Phen: Mar-Nov. Hab: Disturbed areas. Dist: Native of Eurasia.

Origin/Endemic status: Europe

Synonymy: = Ar, FNA5, K3, K4, NE, NY, Costea & Tardif (2003a); = Polygonum aviculare L. – C, GrPl, Il, K1, Mi, S, Tx, W, Mitchell & Dean (1978); < Polygonum aviculare L. – Fl4, G, NcTx, Pa, RAB, Tat, Tn, Va, WH3, Horton (1972); > Polygonum aviculare L. var. aviculare – F, WV; > Polygonum aviculare L. var. vegetum Ledeb. – F, WV; > Polygonum monspeliense Pers.

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Wetland Indicator Status:

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

Heliophily: 8

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image of plant© Radford, Ahles and Bell | Original Image ⭷

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