Lathyrus latifolius L.

Scrambling perennial; stems glabrous, somewhat angled, broadly winged. Lvs glabrous; tendril branched in upper lvs, sometimes reduced and simple in lower lvs; leaflets in 1 pair, narrowly to broadly elliptic, acute to acuminate, 30–100–(120) mm long; veins parallel; stipules ovate-lanceolate with 1–(2) basal lobes, usually c. as wide as or wider than stem, but at least 1/2 as wide ((3)–5–15 mm wide), 15–35 mm long. Infl. > lvs, (4)–8–14-flowered; pedicels 5–12 mm long. Calyx glabrous, slightly or not gibbous at base; calyx teeth somewhat unequal, triangular; lower teeth = or > tube; upper teeth shorter. Corolla usually magenta or purple-pink, rarely white, (15)–20–30 mm long. Pod glabrous, light brown, 10–15-seeded, 60–110 mm long; seeds reddish brown, reticulate-rugose; hilum ⅕-⅓ of circumference.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]

Flowering: Sep.–May.