Calystegia sepium (L.) R.Br.

Rhizomes extensive. Stems glabrous or puberulent at first. Petioles 1.5–8 cm long, generally puberulent. Lamina 3–14–(17) × 2.5–9–(11) cm, usually triangular- or ovate-sagittate, glabrous or puberulent near base; sinus deep and rounded, usually with diverging sides; basal lobes usually rounded or obtuse, rarely acute, sometimes with small subsidiary lobule; apex acute to short-acuminate. Fls solitary; peduncles 3–12 cm long, puberulent or glabrous, ridged or very narrowly winged. Bracts 1.25–3 × 1–1.5 cm, broad-ovate, not imbricate or only slightly so; base rounded or cordate; apex usually obtuse and mucronate. Sepals 12–15 mm long, lanceolate-ovate. Corolla (3)–5–6–(7) cm long; limb 4–6 cm diam., usually pink with white mid-petaline bands, rarely all white. Stamens 2–2.5 cm long; filaments hairy in lower 1/2. Ovary 1-locular. Style > stamens. Capsules c. 1 cm long, subglobose. Seed ± triangular-ovoid with rounded outer surface and ± flat on inner faces, dark brown to almost black.

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

Flowering: Sep.–Feb.