Viola adunca Calflora

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Taxon Report

Viola adunca Sm.

Blue violet, Dog violet, Hookedspur violet, Western dog violet

Viola adunca is a perennial herb that is native to California, and also found elsewhere in North America and beyond.


	Plant Range Observation Search ~1389 records in California Plant Characteristics

Bloom Period

Photos on Calflora


Subspecies and Varieties:
... ssp. adunca
Genus:	Viola
Family:	Violaceae
Category:	angiosperm
PLANTS group:	Dicot
Jepson eFlora section: eudicot

Wetlands: Equally likely to occur in wetlands and non wetlands

Habitat: streambanks, meadows

Communities: Redwood Forest, Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, Mixed Evergreen Forest, Alpine Fell-fields, wetland-riparian

Name Status:
Accepted by PLANTS + POWO

Information about Viola adunca from other sources


Nursery availability from CNPLX This plant is available commercially. USDA PLANTS Profile (VIAD) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist ID Tips on PlantID.net	ITIS Original Publication citation International Plants Names Index Search efloras.org (Flora of North America) Landscape information from Calscape BONAP Distribution Map Consortium of California Herbaria 2 Search the Native American Ethnobotany Database	Add an Observation Location Suitability Planting Guide Distribution by County
California's Coastal Prairies - Ecology. Sonoma State University: Viola adunca is the larval host plant of the endangered Myrtle’s silverspot butterfly (Speyeria zerene myrtleae ). ... survival of the butterfly ... is linked to the continued persistence of this violet. Speyeria zerene myrtleae: XERCES SOCIETY: Formerly widespread on the San Francisco and Marin peninsulas, ... is now only known from four populations in northwestern Marin County and southwestern Sonoma County. Speyeria zerene myrtleae: Essig Museum of Entomology: The eggs are laid only on species of Viola, possibly only Viola adunca. photos / record / common / links

Suggested Citation

Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 04/02/2025).