Lupinus constancei
Brittonia 35: 180, fig. 1. 1983.
Herbs, perennial, less than 1.5 dm, matted, long-shaggy-hairy. Cotyledons deciduous, petiolate. Stems ± prostrate, branched. Leaves cauline, clustered near base; stipules less than 6 mm; petiole 6–8(–14) cm; leaflets 6 or 7, blades 10–20 × 8–10 mm, adaxial surface pubescent. Peduncles 1.5–4 cm; bracts deciduous, 2.5–3 mm. Racemes dense, 3–5 cm, usually exceeding leaves; flowers whorled. Pedicels 1–4 mm. Flowers 8–12 mm, in 5–12 whorls; calyx bulge or spur 0–1 mm, abaxial lobe entire, 4–5 mm, adaxial lobe notched, 4–5 mm; corolla pink, banner patch light yellow, keel dark rose, white at claw, banner glabrous abaxially, strongly reflexed, lower keel margins glabrous, adaxial margin ciliate. Legumes 1.5–2.5 cm, shaggy. Seeds 3–5, tan.
Phenology: Flowering Jul.
Habitat: Serpentine barrens in openings of lower montane conifer forests.
Elevation: 1500–2000 m.
Discussion
Lupinus constancei is known from only two populations in the Lassics Range (Inner North Coast Range) in southeastern Humboldt and northwestern Trinity counties.
Selected References
None.