Lathyrus tingitanus

Herbs annual, glabrous. Stems broadly winged, climbing, basally branched 1–3 times, 8–20 dm. Leaves 2–4 cm, rachises winged as the stem; tendrils well developed; stipules lanceolate, 15–25 × 5–10 mm, smaller than leaflets; leaflets 2, blades ovate or obovate to lanceolate, 25–60 × 5–35 mm, surfaces glabrous. Inflorescences 1–3-flowered, 4–20 cm. Flowers 20–30 mm; calyx lobes equal, lateral lobes deltate, usually shorter than tube; corolla rose-purple, banner erect, blade longer than claw, wings longer than keel; ovary glabrous, style rotated 90° from ovary axis. Legumes 70–100 × 8–12 mm, narrowly winged on abaxial suture. 2n = 14.

Phenology: Flowering Apr–May.
Habitat: Disturbed areas.
Elevation: 0–1200 m.

Introduced; B.C., Calif., Idaho, Oreg., Europe, introduced also in Mexico (Oaxaca), nw Africa, Pacific Islands (Hawaii, New Zealand), Australia.

Discussion

Selected References

None.

Lower Taxa