Polygonum fowleri

Hudsonian knotweed
Renouée de la baie d'Hudson
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Polygonum
Species: P. fowleri
Binomial name
Polygonum fowleri
B.L.Rob.
Synonyms[1]
  • Polygonum allocarpum S.F. Blake
  • Polygonum hudsonianum (S.J. Wolf & McNeill) H.R. Hinds
  • Polygonum caurianum subsp. hudsonianum S.J. Wolf & McNeill

Polygonum fowleri, called (in English) Fowler's knotweed or Hudsonian knotweed or (in French) Renouée de Fowler or Renouée de la baie d'Hudson, is a plant species native to the seashores of the northern part of North America. It has been reported from every Canadian province and territory except Alberta and Saskatchewan, as well as from Maine, Alaska, Washington, Oregon, California, and St. Pierre & Miquelon. It is usually found in gravelly locations along the seacoast.[2][3]

Polygonum fowleri is a prostrate to ascending herb, often with zigzagged stems. Inflorescences are in the axils of the leaves, each with up to 10 white or pink flowers.[2][4]

Subspecies

Two subspecies are recognized, treated by some botanists as distinct species:[2]

References

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