Lupinus tracyi
Leafl. W. Bot. 2: 268. 1940.
Herbs, perennial, 4–7 dm, glabrous, glaucous. Cotyledons deciduous, petiolate. Stems solitary, erect, slender, usually unbranched. Leaves cauline; stipules 7–9 mm; petiole to 1 cm; leaflets 6 or 7, blades 10–40 × 4–10 mm, adaxial surface glabrous. Peduncles 2–6 cm; bracts deciduous, 8–10 mm. Racemes 4–16 cm; flowers ± whorled or not. Pedicels 5–6 mm. Flowers 8–10(–12) mm; calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 3–5 mm, adaxial lobe 2-toothed, 3–8 mm; corolla whitish to dull blue (at least in bud), often fading to pale yellow, banner glabrous abaxially, keel glabrous, tip sometimes exserted. Legumes 1.5–2.5 cm, white-hairy, dark when dry. Seeds 3 or 4, 4–5 mm.
Phenology: Flowering (May–)Jun–Jul.
Habitat: Dry, open montane forests.
Elevation: 800–2500 m.
Distribution
Calif., Oreg.
Discussion
Lupinus tracyi is known from the Klamath Ranges of northern California and adjacent areas in southern Oregon.
Selected References
None.