Herbs, annual, 1–2.5(–4) dm, pilose, hairs soft, flexuous, more than 1 mm. Cotyledons persis­tent on young plants, becoming dry and deciduous, sessile. Stems ascending or erect, usually branched, sometimes unbranched. Leaves cauline; stipules well developed; petiole 1.3–3.3 cm; leaflets (3 or)4–7, blades 7–20(–24) × 3–5 mm, adaxial surface pubescent. Peduncles (1–)3–6 cm; bracts per­sistent, 3–4 mm. Racemes dense, several-flowered, 1–3 cm; flowers spirally arranged. Pedicels 0.8–2 mm. Flowers 5–9 mm; calyx 7–8 mm, adaxial lobe more than 1/2 as long as abaxial; corolla usually blue with pale banner patch, sometimes entirely white, keel glabrous. Legumes not obviously undulate, 0.9–1.3 cm, sparsely or densely pilose. Seeds 2.

Phenology: Flowering late spring–summer (late May–Aug).
Habitat: Dry open places in ponderosa pine forests, pine-oak transition and upper edge of pinyon-juniper woodland.
Elevation: 1200–3000 m.

Distribution

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Ariz., Colo., Nev., N.Mex., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.