Calflora
Taxon  Report   6741    
Polygonum bistortoides  Pursh  
(no longer an active name)
American bistort,  Snakeweed, Western bistort, Western knotweed
Polygonum bistortoides, a dicot, is a perennial herb that is native to California and and is also found elsewhere in North America and beyond.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial

Bloom Period
Family: POLYGONACEAE  
Genus: Polygonum

Habitat: streambanks, meadows

Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, wetland-riparian

Name Status:
Accepted by PLANTS

JEF other name:
Bistorta bistortoides

Alternate Names:
PLANTS: Bistorta bistortoides
PLANTS: Persicaria bistortoides
PLANTS: Polygonum bistortoides var. linearifolium
. . .
NOTE: Polygonum bistortoides is no longer an active name.
More information about  Polygonum bistortoides
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (POBI6)


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]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Jul 12, 2020).