logo Calflora, a 501c3 non-profit
Taxon  Report  
Oxalis pes-caprae  L.
Bermuda buttercup,   Sourgrass
Oxalis pes-caprae is a perennial herb that is not native to California.
Cal-IPC rating: moderate
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
Observation Search
~4072 records in California
redone or more occurrences
within a 7.5-minute quadrangle
DJJJASONAFMM

Bloom Period
Genus: Oxalis
Family: Oxalidaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: Possible skin irritation from touching any part of this plant.
Do not eat any part of this plant.

Habitat: disturbed

Communities: agricultural weed

Name Status:
Accepted by JEF + PLANTS
Alternate Names:
PLANTSBolboxalis cernua
JEF + PLANTSOxalis cernua
Information about  Oxalis pes-caprae from other sources

Bay Nature: ... a weed native to South Africa that was transplanted to California early in the 1900s, ... Oxalis crowds out native wildflowers for light and space, and prevents other plants from gaining a foothold in the land.

Weed Control in Natural Areas in the Western United States: Viable seed never has been documented in the United States, and rarely has it been seen anywhere else in the world. (contributed by Cynthia Powell)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 04/20/2024).