Polygonum engelmannii

Polygonum engelmannii, common name Engelmann's knotweed, is a North American species of plants in the buckwheat family. It is native to western Canada and the western United States, usually at high elevations in the mountains. It has been found in Alberta, British Columbia, Idaho, Montana, Wyoming, Nevada, Utah, and Colorado.[2]

Polygonum engelmannii
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Core eudicots
Order:
Caryophyllales
Family:
Polygonaceae
Genus:
Polygonum
Species:
P. engelmannii
Binomial name
Polygonum engelmannii
Greene 1885
Synonyms[1]
  • Polygonum douglasii subsp. engelmannii (Greene) Kartesz & Gandhi

Polygonum engelmannii is an branching herb up to 30 cm (1 foot) tall. It has clusters of green or purple flowers.[3][4]

References
  1. Tropicos, Polygonum engelmannii Greene
  2. Biota of North America Program 2014 county distribution map
  3. Flora of North America, Polygonum engelmannii Greene, 1885. (as engelmanni). Engelmann's knotweed
  4. Greene, Edward Lee. 1885. Bulletin of the California Academy of Sciences 1(3): 126


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