Herbs, annual, 2–6 dm, densely hairy, hairs to 3.5 mm. Cotyle­dons deciduous, petiolate. Stems erect, branched or unbranched. Leaves cauline; peti­ole 4–9 cm; leaflets usually 9, blades 10–40 × 4–9 mm, adax­ial surface villous to pilose. Peduncles 5–12 cm; bracts usually deciduous, 8–9 mm. Racemes 10–40 cm; flowers whorled. Pedicels 6–8 mm. Flowers 11–17 mm; calyx 4–7 mm, lobes ± equal, abaxial lobe entire, adaxial lobe cleft; corolla usually blue, rarely white, banner spot white, upper keel margins ciliate near apex, banner as wide as or wider than long. Legumes 3–5 × 0.8–1 cm, densely pubescent. Seeds 5–10.

Phenology: Flowering spring (Apr–May).
Habitat: Serpentine outcrops, chaparral, foothill woodlands.
Elevation: 200–900 m.

Distribution

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Calif.

Discussion

Lupinus spectabilis is known from the central Sierra Nevada foothills in Mariposa and Tuolumne counties; it intergrades with L. nanus.

Selected References

None.

Lower Taxa

None.