Polygonum sawatchense ssp. sawatchense Calflora

Calflora

Taxon Report 11038

Polygonum sawatchense Small ssp. sawatchense

Knotweed

2009 Barry Breckling

2019 Susan McDougall

2009 Barry Breckling

Polygonum sawatchense ssp. sawatchense, a dicot, is an annual or perennial herb that is native to California, and also found elsewhere in western North America.

also called Polygonum douglasii ssp. johnstonii


	Plant Range Observation Search (153 records) Plant Characteristics

Bloom Period

Photos from Calflora / CalPhotos


Family:	Polygonaceae
Genus:	Polygonum
Parent:	Polygonum sawatchense

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Name Status:
Accepted by JEF

Alternate Names:


JEF	Polygonum douglasii ssp. johnstonii
JEF	Polygonum douglasii var. johnstonii
JEF	Polygonum exile
JEF	Polygonum triandrum

More information about Polygonum sawatchense ssp. sawatchense


Nursery availability from CNPLX Commercial availability unknown. Jepson eFlora	International Plants Names Index Search efloras.org (Flora of North America) Landscape information from Calscape Photos on PlantID.net / Google Images Consortium of California Herbaria 2	Add an Observation Location Suitability Planting Guide Distribution by County
photos / record / common / links null:!po137062:!null:!

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]. 2021. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 10/22/2021).