Lupinus grayi
Proc. Amer. Acad. Arts 11: 126. 1876.
Herbs, perennial, 2–3.5 dm, spreading-tomentose to -woolly. Cotyledons deciduous, petiolate. Stems prostrate to matted, clustered, usually unbranched. Leaves usually basal; stipules 4–10 mm; petiole 5–12 cm; leaflets 5–11, blades 10–35 × 4–7 mm, adaxial surface hairs ± spreading, dense, tomentose to woolly. Peduncles 3–15 cm; bracts deciduous, 4–5(–10) mm. Racemes 10–16 cm; flowers ± whorled. Pedicels 2–4 mm. Flowers fragrant, 10–16 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 7–12 mm, adaxial lobe deeply 2-toothed, 5–10 mm; corolla deep purple to light blue, banner patch yellow turning reddish, banner glabrous or hairy abaxially, lower keel margins usually ciliate near base, adaxial margin densely hairy. Legumes 2–3.5 cm, hairy. Seeds 4–6, mottled gray-brown with dark lateral line, 3–4 mm.
Phenology: Flowering May–Jul.
Habitat: Openings in yellow pine and red fir forests.
Elevation: 500–2500 m.
Distribution
Calif., Mexico (Baja California).
Discussion
Lupinus grayi is known from the Sierra Nevada from Kern County northward to Plumas County.
Selected References
None.