Lathyrus torreyi
Proc. Amer. Acad. Arts 7: 337. 1868.
Herbs perennial, from rhizome, finely villous. Stems angled, erect to sprawling, basally branched 0–3 times, 1–4 dm. Leaves 2–7 cm; tendrils absent or mucronate; stipules lanceolate, 7–12 × 2–5 mm, much smaller than leaflets; leaflets 8–16, scattered, blades ovate to lanceolate, 5–15 × 3–10 mm, surfaces villous. Inflorescences 1- or 2-flowered, 0.5–3 cm. Flowers 8–12 mm; calyx lobes unequal, lateral lobes linear-triangular, longer than tube; corolla blue-purple, banner erect, blade equal to claw, wings longer than keel; ovary densely pubescent. Legumes 15–20 × 4–5 mm. 2n = 14.
Phenology: Flowering Apr–Jul.
Habitat: Open coniferous forests.
Elevation: 50–1500 m.
Distribution
Calif., Oreg., Wash.
Discussion
Lathyrus torreyi is known from in and west of the Cascade Range; it is very rare in Washington.
Selected References
None.
Lower Taxa
None.