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Dog Violet
Viola adunca
  
About Dog Violet (Viola adunca) 9 Nurseries Carry This Plant Viola adunca is a species of violet known by the common names hookedspur violet, early blue violet, sand violet, and western dog violet. It is native to meadows and forests of western North America, Canada, and the northern contiguous United States. This is a hairy, compact plant growing from a small rhizome system. The leaves are spade- or heart-shaped, sometimes with broadly wavy margins. They are generally 1 to 4 centimeters long. The single-flowered inflorescence grows at the end of a long, very thin peduncle. The nodding flower is a violet with five purple petals, the lower three with white bases and purple veining. The two side petals are white-bearded near the throat. The upper two petals may have hooked spurs at their tips.

Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
1 ft tall

Flower Color
Flower Color
Blue, White, Purple

Flowering Season
Flowering Season
Spring, Summer

Wildlife Supported
 


Landscaping Information
Sun
Sun
Full Sun, Part Shade

Moisture
Moisture
Low, Moderate - High

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Soil Drainage
Soil Drainage
Fast, Medium, Slow

Soil Description
Soil Description
Adaptable

Sunset Zones
Sunset Zones?
1*, 2, 3, 4*, 5*, 6*, 7*, 14, 15*, 16*, 17*, 18, 19, 20, 21, 22, 23, 24

Natural Setting
Site Type
Site Type
Sheltered places, along streams

Climate
Climate
Annual Precipitation: 16.6" - 151.1", Summer Precipitation: 0.24" - 5.95", Coldest Month: 19.5" - 51.0", Hottest Month: 42.2" - 77.1", Humidity: 0.01" - 26.37", Elevation: -42" - 11286"

Alternative Names
Common Names: Early Blue Violet, Hookedspur Violet, Sand Violet, Western Dog Violet


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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