Calflora
Taxon  Report   6748    
Polygonum douglasii  Greene
Douglas' knotweed
Polygonum douglasii, a dicot, is an annual herb that is native to California, is also found elsewhere in North America and beyond.

Bloom Period
Family: POLYGONACEAE  
Genus: Polygonum
Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Habitat: meadows

Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, Sagebrush Scrub

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEF: Polygonum douglasii ssp. douglasii
JEF: Polygonum douglasii var. latifolium
JEF: Polygonum emaciatum
. . .
More information about  Polygonum douglasii
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (PODO4)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Oct 19, 2019).