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Polygonaceae
Polygonum

not marked as a favorite taxon *Polygonum aviculare Linnaeus ssp. neglectum (Besser) Arcangeli. Common name: Needle-leaf Knotweed. Phenology: Jun-Nov. Habitat: Fields, disturbed areas. Distribution: Native of Europe. Documented from scattered locations in s. PA (Rhoads & Klein 1993); DE, NJ, and MD (Kartesz 1999); and WV (as P. aviculare ssp. rurivagum) (Costea & Tardif 2003).

Glossary (beta!)

Origin/Endemic status: Europe

Synonymy ⓘ: = Can, FNA5, K4, Mo3, NE, NY; = Polygonum neglectum Besser — GrPl, Il, Tat; < Polygonum aviculare L. — C, G, NcTx, Pa, RAB, Tn, WH3; ? Polygonum aviculare L. var. angustissimum Meisn.; < Polygonum aviculare L. var. aviculare — F; ? Polygonum bellardii All.; > Polygonum franktonii S.J.Wolf & McNeill. Basionym: Polygonum neglectum Besser 1822

Links to other floras: = Polygonum aviculare ssp. neglectum - FNA5

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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)

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image #1 of Polygonum aviculare ssp. neglectum© Erik Danielson source | Original Image ⭷
image #2 of Polygonum aviculare ssp. neglectum© Erik Danielson source | Original Image ⭷
image #3 of Polygonum aviculare ssp. neglectum© Erik Danielson source | Original Image ⭷
image #4 of Polygonum aviculare ssp. neglectum© Erik Danielson source | Original Image ⭷

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Horticultural Information

No horticultural data found for this taxon.

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