Calflora Taxon Report
Oxalis oregana Nutt.
Redwood sorrel
Oxalis oregana is a perennial herb that is native to California, and also found elsewhere in western North America.

Alternate Names and Sources:
Oxalis acetosella ssp. oreganaPLANTS
Oxalis oregana var. smalliiPLANTS
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
The blue points on the map indicate observations in Calflora.
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Accepted by: JEPS + PLANTS + POWO
Jepson eFlora section:
eudicot
USDA PLANTS group:
Dicot

Possible skin irritation from touching any part of this plant.
Do not eat any part of this plant.
Occurs usually in non wetlands, occasionally in wetlands
Redwood Forest, Douglas-Fir Forest

[Wikipedia] As Food: The leaves of Oxalis oregana are eaten by the Cowlitz, Quileute and Quinault peoples. Like spinach, they contain mildly toxic oxalic acid, which is named after the genus.[7] They are safe to eat in small amounts for those with no oxalate-related conditions.[8] (link added by Mary Ann Machi)

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

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