Lathyrus sylvestris L.

Scrambling perennial; stems glabrous, angled, broadly winged. Lvs glabrous; tendril branched in upper lvs, sometimes simple in lower lvs; leaflets in 1 pair, usually lanceolate to linear, rarely narrowly elliptic, narrowly acute to acuminate, 50–130 mm long; veins parallel; stipules lanceolate to linear, with 1 narrow basal lobe, < 1/2 as wide as stem (c. 1–3 mm wide), (5)–10–20 mm long. Infl. > lvs, (2)–5–8-flowered; pedicels 4–10 mm long. Calyx glabrous, slightly or not gibbous at base; calyx teeth unequal, narrowly triangular, < tube. Corolla purple-pink, 13–17 mm long. Pod glabrous, brown, 8–15- seeded, 40–70 mm long; seeds reticulate-rugose; hilum ?-1/2 of circumference.

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

Flowering: Jan.–Feb.