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Taxon  Report  
Viola primulifolia  L.  ssp. occidentalis  (A. Gray) L.E. McKinney & R. J. Little
Western bog violet
Viola primulifolia ssp. occidentalis is a perennial herb (rhizomatous) that is native to California, and also found in Oregon.
also called Viola lanceolata ssp. occidentalis
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
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
(52 records)
yellowone or more occurrences
within a 7.5-minute quadrangle
bloom graphic
Bloom Period
Parent: Viola primulifolia
Genus: Viola
Family: Violaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: MINOR (SEEDS)

Ultramafic affinity: 5.1 - broad endemic

Habitat: freshwater-marsh, bogs/fens

Communities: Freshwater Wetlands

Name Status:
Accepted by JEF + CNPS
Alternate Names:
CNPSViola lanceolata ssp. occidentalis
PLANTSViola lanceolata ssp. occidentalis
Information about  Viola primulifolia ssp. occidentalis from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (VILAO)

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ID Tips on PlantID.net


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 01/29/2023).