Calflora Taxon Report
Rumex lacustris  Greene
Lake dock
photo on Calflora
2018 Leah Gardner
photo on Calflora
2025 Matt Berger
photo on Calflora
2025 Matt Berger
photo on Calflora
2025 Matt Berger
photo on Calflora
2025 Matt Berger
photo on Calflora
2025 Matt Berger
photo on Calflora
2025 Matt Berger
Rumex lacustris is a perennial herb (aquatic) that is native to California, and also found elsewhere in western North America.
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: Rumex
Family: Polygonaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot
Toxicity: Possible skin irritation from touching the leaf of this plant.
Do not eat the leaf of this plant.

Wetlands: Occurs in wetlands

Communities: Sagebrush Scrub, Alkali Sink, Yellow Pine Forest, Northern Juniper Woodland, wetland-riparian

Name Status:
Accepted by JEF + POWO
Alternate Names:
JEFRumex salicifolius var. lacustris
PLANTSRumex salicifolius var. lacustris
External links:
Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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