LeavesLong petioles; egg-shaped to round; heart-shaped at base; small rounded teeth on margin; fine short hairs or hairless; stipules lance-shaped; bear small spines on margin or entire. Alternate; stipules reddish brown. 0.7-4.5 cm long and 1-3.5 cm wide.FlowersSingle flowers from leaf axils; petals 5, blue to violet, lower 3 white at base, side pair white bearded; 1-2 cm long and 0.5 cm wide; spur straight or hooked, 4-6 mm long; sepals 5, lance-shaped, half-length of the petals; stamens 5, 4 pollen sacs.Fruits and SeedsCapsule; 4-5 mm long which opens explosively at three valves; dark brown seeds.
Scientific NameViola adunca Sm.
Common Name
early blue violet
General Description
A perennial, tufted herb that grows from a slender rhizome and reaches a height of 4-10 cm in the spring, but later grows to 10-15 cm tall; single flowers are found in the leaf axils and are blue to deep violet.
Leaves
Long petioles; egg-shaped to round; heart-shaped at base; small rounded teeth on margin; fine short hairs or hairless; stipules lance-shaped; bear small spines on margin or entire. Alternate; stipules reddish brown.…
Long petioles; egg-shaped to round; heart-shaped at base; small rounded teeth on margin; fine short hairs or hairless; stipules lance-shaped; bear small spines on margin or entire. Alternate; stipules reddish brown. 0.7-4.5 cm long and 1-3.5 cm wide.
Flowers
Single flowers from leaf axils; petals 5, blue to violet, lower 3 white at base, side pair white bearded; 1-2 cm long and 0.5 cm wide; spur straight or hooked, 4-6 mm long; sepals 5, lance-shaped, half-length of the…
Single flowers from leaf axils; petals 5, blue to violet, lower 3 white at base, side pair white bearded; 1-2 cm long and 0.5 cm wide; spur straight or hooked, 4-6 mm long; sepals 5, lance-shaped, half-length of the petals; stamens 5, 4 pollen sacs.
Fruits and Seeds
Capsule; 4-5 mm long which opens explosively at three valves; dark brown seeds.
Phenology
Flowering early May to August.
Notes
2n=20*, 30*, 40*
Similar species: V. pedatifida can be found on dry prairie grasslands and can be distinguised from V. adunca by basal leaves with 6-15 finger-like lobes and bright purple flowers that are 1-2 cm across.
2n=20*, 30*, 40*
Similar species: V. pedatifida can be found on dry prairie grasslands and can be distinguised from V. adunca by basal leaves with 6-15 finger-like lobes and bright purple flowers that are 1-2 cm across.
Range/Distribution
Alberta: SW in mountain range and central. CAN (BC, MB, NB, NS, SK, NT, NU, ON, QC, YT); USA (AK, WA, OR, CA, NV, ID, MT, WY, UT, AZ, CO, NM, ND, SD, IA, MN, WI, MI, NY, VT, ME, MA, NH).
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Citation
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Page Citation for Viola adunca Sm.
Page Citation
"Species Details - Viola adunca Sm., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-5256/12-160176. Accessed 06 Sep. 2024.
Specimen Information
There are 342 specimens of this Species.
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272 results plotted on map in 252 markers. Note: Only records with latitude and longitude coordinates are plotted on map.