Herbs, perennial, 1–4 dm, long-hairy. Cotyledons deciduous, petiolate. Stems erect, tufted, unbranched. Leaves basal and cauline; stipules 8–10 mm; basal petioles to 14 cm, cauline to 4 cm; leaflets 6–10, blades 20–50 × 4–6 mm, adaxial surface pubescent. Peduncles 3–6 cm; bracts deciduous, 4–5 mm. Racemes 5–17 cm; flowers spirally arranged. Pedicels 4–8 mm. Flowers 10–12 mm; calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 4–5 mm, adaxial lobe 2-toothed, 3–4 mm; corolla blue, banner patch white to yellowish, banner glabrous abaxially, keel strongly upcurved, lower keel margins glabrous, adaxial margin ciliate. Legumes 2.5–4 cm, densely hairy. Seeds 3–4.
Phenology: Flowering Apr–Aug.
Habitat: Hillsides, valleys, with sage-brush, Great Basin scrub, pinyon-juniper woodlands.
Elevation: 1000–3000 m.
Distribution
Calif., Nev., Oreg.
Discussion
Lupinus nevadensis is found in Lassen, Mono, and northern Inyo counties in eastern California, Washoe County southward to Mineral County in western Nevada, and Harney County in southern Oregon.
Selected References
None.