Herbs, perennial, 3–8 dm, green, spreading-hairy. Cotyle­dons deciduous, petiolate. Stems erect, unbranched or branched. Leaves cauline; stipules green, leaflike, lan­ceolate, 6–30 mm; petiole 3–6 cm; leaflets 6–9, blades 20–60 × 4–8 mm, adaxial surface pubescent. Peduncles 1–11 cm; bracts deciduous, 4–10 mm. Racemes 3–20 cm; flowers ± whorled. Pedicels 2–7 mm. Flowers 10–14 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 5–12 mm, adaxial lobe 2-toothed, 5–10 mm; corolla blue, banner patch white, banner glabrous abaxially, keel upcurved, usually glabrous, sparsely hairy near middle of adaxial margin. Legumes 2–4 cm, silky. Seeds 2–6, beige, mottled brown, 4–5 mm.

Phenology: Flowering May–Sep.
Habitat: In mixed conifer forests, on granitic soils.
Elevation: 1500–3000 m.

Distribution

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Calif.

Discussion

Lupinus fulcratus is found at higher elevations in the Sierra Nevada. It closely resembles L. andersonii except for the leaflike stipules.

Lupinus ionewalkerae C. P. Smith, L. lingulae C. P. Smith, and L. cymbaegressus C. P. Smith may be hybrids with L. andersonii (P. A. Munz 1959).

Selected References

None.

Lower Taxa

None.