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Polygonaceae
Polygonum

not marked as a favorite taxon Polygonum prolificum (Small) B.L. Robinson. Common name: Longfruit Knotweed, Bushy Knotweed, Prolific Knotweed. Phenology: Jul-Nov. Habitat: Brackish marshes, disturbed areas. Distribution: PE, QC, MB, and BC, south to GA, AL, LA, TX.

Glossary (beta!)

Origin/Endemic status: Native

Synonymy ⓘ: = C, G, Tat; = n/a — RAB; = Polygonum ramosissimum Michx. ssp. prolificum (Small) Costea & Tardif — Ar, Can, FNA5, K4, NE, NY, Pa, Tn, Costea & Tardif (2003a); = Polygonum ramosissimum Michx. var. prolificum Small — Mitchell & Dean (1978); > Polygonum exsertum Small — F, Il; > Polygonum prolificum (Small) B.L.Rob. — F, Il; < Polygonum ramosissimum Michx. — GrPl, Horton (1972). Basionym: Polygonum ramosissimum Michx. var. prolificum Small 1894

Links to other floras: = Polygonum ramosissimum ssp. prolificum - FNA5

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Wetland Indicator Status:

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

Heliophily ⓘ: 8

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image #1 of Polygonum prolificum© Matt, some rights reserved (CC BY-NC), uploaded by Matt source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #2 of Polygonum prolificum© Matt, some rights reserved (CC BY-NC), uploaded by Matt source CC-BY-NC, permission granted to NCBG | Original Image ⭷

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Horticultural Information

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