Herbs, perennial, 4–6 dm, green, hairy. Cotyledons decid­uous, petiolate. Stems erect or ascend­ing, clustered, unbranched or branched. Leaves cauline; stip­ules not leaflike, green to silvery, 4–10 mm; petiole 2–8 cm; leaflets 5–9, blades 30–60 × 3–10 mm, adaxial surface pubescent or glabrous. Peduncles 2–6 cm; bracts tardily deciduous, 2–7 mm. Racemes 6–28 cm; flowers whorled or not. Pedicels 3–6 mm. Flowers 12–15 mm; calyx bulge or spur 0–1 mm, abaxial lobe 2 or 3-toothed, 6–7 mm, adaxial lobe 2-toothed, 4–6 mm; corolla bright yellow to orange-yellow, banner usually glabrous abaxially, sparsely hairy on ridge, keel upcurved, glabrous. Legumes 2–3.5 cm, hairy. Seeds 3–5, mottled tan, 6–8 mm.

Phenology: Flowering May–Aug.
Habitat: Dry, rocky places, yellow pine and fir forests, montane chaparral.
Elevation: 900–2700 m.

Distribution

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Calif.

Discussion

Lupinus croceus is known from the Cascade and Klamath ranges.

Herbs with spreading hairs and subequal calyx lobes have been called var. pilosellus.

Selected References

None.

Lower Taxa

None.