Nuttall's yellow violet

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Nuttall's yellow violet habit

Nuttall's yellow violet

Nuttall's yellow violet flowers

Nuttall's yellow violet

Nuttall's yellow violet

Morphology

Stem

Ascending to erect, glabrous or puberulent.

Leaves

Basal and cauline, alternate; stipules lanceolate to oblong or elliptic, .12 to .6 inch, margins entire to serrate distally; petiole to 2.4 inches, sparsely to densely puberulent; blade lanceolate to ovate or elliptic, 3.5-4.5 times as long as wide, .8 to 2.4 inches long, .2 to 1 inch wide, base cuneate to attenuate, margins entire to sinuate or remotely crenate-dentate, apex acute, surfaces sparsely to densely puberulent.

Inflorescence

Basal or axillary, flowers solitary; peduncles reflexed apically; bracts 2, medial.

Flower

Chasmogamous flowers .4 to .6 inch; sepals 5, distinct, lanceolate, .16 to .28 inch, margins glabrous or ciliolate proximally, apex acute; petals 5, distinct, yellow, unequal, abaxial 3 usually with purple veins, lateral 2 bearded, spurred one broadly oblanceolate, beardless; stamens 5, included in corolla throat; filaments distinct; style slender; pistil 1; style 1. Cleistogamous flowers on short peduncles in distal axils.

Fruit

Capsules, tan, .24 to .35 inch, glabrous or puberulent. Seeds brown, .11 to .12 inch.

Ecology

Habitat

Rocky, calcareous, mixed-grass and shortgrass prairies.

Distribution

West half of Kansas

Additional Notes