Project
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Keys to Nature Project |
| Key to the "Stemless Blue" Violets, Subsection Boreali-Americanae, of the Chicago Region - Expert Version |
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10a. Blades divided into three or five linear to subspatulate segments with mucronulate apex, middle segment equal to the lateral segments; sepals acute; petals violet; trichomes present on the spurred petal; plants growing in prairies, prairie relicts on banks of railroad tracks, and margins of fields - V. pedatifida SELECT
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10b. Blades reniform and trilobed, middle lobe of trilobed blades widest, widely obovate or oblong with obtuse apex; sepals obtuse; petals violet to purple-violet; trichomes absent on the spurred petal; plants growing in margins and openings in rich, often rocky woods - V. triloba SELECT
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