Lupinus citrinus

Kellogg

Proc. Calif. Acad. Sci. 7: 93. 1877.

Endemic
Treatment appears in FNA Volume 11.

Herbs, annual, 1–6 dm, hairs soft, white, sometimes matted, to 2 mm. Cotyledons deciduous, petiolate. Stems ascending or erect, branched or unbranched. Leaves cauline; petiole 2–7 cm; leaflets 6–9, blades 15–35 × 3–10 mm, adaxial surface densely pubescent to tomentose. Peduncles 1–9 cm; bracts deciduous, 2.5–5 mm. Racemes 5–25 cm; flowers spirally arranged, sometimes appearing whorled proximally. Pedicels 2.5–5 mm, becoming recurved. Flowers 8.5–12 mm; calyx 3–5 mm, lobes ± equal, cleft; corolla golden yellow or white, lower keel margins short-ciliate near claw. Legumes 1–2 cm, glabrous or glabrate. Seeds 3–8, resembling bits of granite.

Discussion

Varieties 2 (2 in the flora).

Lupinus citrinus is known from the central Sierra Nevada Foothills.

Selected References

None.

Key

1 Corollas golden yellow. Lupinus citrinus var. citrinus
1 Corollas white. Lupinus citrinus var. deflexus