Herbs, perennial, 6–12 dm, white-woolly. Cotyledons deciduous, petiolate. Stems erect, branched at base, hairs 1–3 mm, sharp, stiff. Leaves usually basal; stipules 10–24 mm; petiole 6–30 cm; leaflets 5–9, blades 20–55 × 6–15 mm, adaxial surface densely woolly. Peduncles 10–50 cm; bracts deciduous, 4–5 mm. Racemes 10–45 cm; flowers whorled or not. Pedicels 2–8 mm. Flowers fragrant, 10–18 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire, 5–11 mm, adaxial lobe, 2-toothed, 5–9 mm; corolla lavender to rose, banner patch yellow turning purple, banner glabrous abaxially, lower keel margins glabrous, adaxial margin ciliate middle to tip. Legumes 3–7 cm, densely hairy. Seeds 5–8, tan, 3–4 mm.
Distribution
California.
Discussion
Varieties 3 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Flowers (13–)16–18 mm. | Lupinus magnificus var. magnificus |
| 1 | Flowers 10–13 mm. | > 2 |
| 2 | Keel petals curved; racemes 20–40 cm. | Lupinus magnificus var. glarecola |
| 2 | Keel petals straight; racemes 10 cm. | Lupinus magnificus var. hesperius |