Calflora Taxon Report
Polygonum bistortoides  Pursh

(not an active name)
American bistort,   Snakeweed,   Western bistort,   Western knotweed
Polygonum bistortoides is a perennial herb that is native to California, and also found elsewhere in North America and beyond.
also called Bistorta bistortoides
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
DJJJASONAFMM

Bloom Period
Genus: Polygonum
Family: Polygonaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Habitat: streambanks, meadows

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

Name Status:
Accepted by PLANTS
Alternate Names:
PLANTSBistorta bistortoides
PLANTSPersicaria bistortoides
PLANTSPolygonum bistortoides var. linearifolium
PLANTSPolygonum bistortoides var. oblongifolium
PLANTSPolygonum cephalophorum
More …
Information about Polygonum bistortoides from other sources
Nursery availability from CNPLX
Commercial availability unknown.

USDA PLANTS Profile (POBI6)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

Accessed: