Viola sororia
 
Woolly Violet

Base of Plant

Near Caragana
07-June-2019

Several petioles can be seen on the left side of the picture, and the single scape can be seen on the right side.  Note that the scape and some of the petioles are pubescent.  A key to violets originally written by Vern Harmes and subsequently expanded by Glen Lee to include most of the violets found in Saskatchewan can be found here.

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Sororia: Answers to questions in Lee/Harmes key leading to this species. 
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Flowers purple-blue or mauve; NOT [Flowers yellow]; NOT [Flowers white]

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Leaves not deeply divided or lobed, merely shallowly toothed; NOT [Leaves cleft almost to their bases]

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Plant without a leafy flowering stem, the leaves and flower stem all grow from a central rootstalk; NOT [Plant has leafy flowering stems]

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Petals beardless, flower spur is long, about 2/3 the length of the petal blade; NOT [Side petals or all petals bearded]

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Some leaves with hairy petioles; NOT [Plants glabrous]

 

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Violaceae: Answers to key questions in Budd's Flora leading to this family. 
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herbs; NOT [shrubs or trees]

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plants terrestrial or semiaquatic; NOT [plants aquatic, leaves submerged or floating]

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plants not with colored milky juice

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plants with more than one normal leaf

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some or all leaves alternate; NOT [leaves opposite, whorled, or basal]

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leaves with stipules; NOT [leaves without stipules, or having glands]

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flowers with two floral rings

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calyx regular; NOT [calyx irregular, some sepals smaller than others]

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corolla with each petal distinct from the others

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corolla irregular in shape; NOT [corolla regular in shape]

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corolla with one petal spurred or sac-like; NOT [corolla pea-like]

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stamens usually separate or partly so, not in a column; NOT [stamens numerous, united into a column]

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fruit a 3-valved capsule; NOT [fruit a legume]