Very slender much-branched liane up to ± 5 m. tall; branchlets almost filiform, finely pubescent. Lvs on very slender petioles up to ± 5 mm. long. Lamina patent, subcoriac., linear to linear-lanceolate, (2)–4–6–(8) cm. × 3–5 mm. (greatest width when 2 lobes are subopp.); base truncate or rounded, apex acute to apiculate (occ. lvs obtuse); margins distinctly closely lobulate, lobes diminishing from base to apex of lamina. Infl. of few-fld cymes on filiform, finely pubescent peduncles. Fls 3–4 mm. long. Calyx finely pubescent, (1)–2–3 mm. long, ± = corolla-tube; lobes ovate, acute. Corolla rose to red, pale on tube; lobes ± 3 mm. long, lanceolate-oblong, acute, revolute, Follicles ± 8 cm. × 3 mm., subterete.
[From: Allan (1961) Flora of New Zealand. Volume 1.]