Lathyrus grandiflorus Sibth. & Sm.

Scrambling perennial; stems densely hairy, sharply angled, but not winged. Lvs finely hairy; tendrils branched in upper lvs, often reduced and simple in lower lvs; leaflets in 1–(3) pairs, elliptic to obovate, acute to obtuse, (15)–25–40 mm long; veins only weakly parallel; stipules narrowly triangular, sagittate or often with only 1 basal lobe, narrower than stem, 3–8 mm long. Infl. much > lvs, 1–4-flowered; pedicels 6–8 mm long. Calyx ± glabrous or hairy, slightly gibbous at base; calyx teeth ± equal, triangular, < tube. Corolla 25–35 mm long, with violet standard, purple to crimson wings and pink keel. Pod glabrous, brown, 15–20-seeded, 60–90 mm long; seeds smooth; hilum ⅙ of circumference.

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

Flowering: Nov.–Dec.