logo Calflora, a 501c3 non-profit
Taxon  Report  
Berberis nervosa  Pursh
Cascades oregon grape,   Oregongrape
Berberis nervosa is a shrub 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: Berberis
Family: Berberidaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: Do not eat any part of this plant.

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Communities: North Coastal Coniferous Forest, Redwood Forest, Douglas-Fir Forest

Name Status:
Accepted by JEF

Alternate Names:
JEFMahonia nervosa var. mendocinensis
ICPNMahonia nervosa
PLANTSMahonia nervosa
Information about  Berberis nervosa from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

USDA PLANTS Profile (MANE2)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Taxonomy: Berberis nervosa was scientifically described and named by German-American botanist Frederick Traugott Pursh in 1813.[1][9] In 1818 Thomas Nuttall placed it in the new genus Mahonia as Mahonia nervosa.[1][10] A paper was published by Joseph Edward Laferrière in 1997 summarized the arguments in favor of Berberis as the correct classification.[11][12] As of 2023 most botanists place the entire genus Mahonia within the genus Berberis[13] including Plants of the World Online (POWO) and World Flora Online.[1][14] (link added by Mary Ann Machi)


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: 07/17/2024).