Slender twiner, ± glabrous except corolla; latex clear. Juvenile leaves usually linear, often purple beneath. Adult leaves thin, soft; petiole 3–15 mm long; lamina lanceolate, ovate or elliptic, 3–15 cm long, 1–4 cm wide, rounded, truncate or cuneate at base, long-acuminate to a fine point; secondary veins raised below, interconnecting to form an intramarginal vein. Inflorescence of axillary and terminal cymes with 3–15 flowers, shorter than leaves; axes glabrous or sparsely pubescent; pedicels 1–7 (–12) mm long. Calyx segments slender, spreading or recurved. Corolla whitish; tube c. 2 mm long; lobes erect or inflexed, hood-shaped, 1–1.5 mm long, bearded at base internally. Anther cone c. 2 mm long, enclosed or with tip exserted; filaments straight; anther tails diverging. Nectary scales narrow, free. Capsules slender, terete, 6–10 cm long, 0.5–0.8 cm diam., glabrous.
Grows in rainforests of subtropical, warm-temperate and cool-temperate types in clays or clay-loams usually derived from basalt or metasediments, in coastal ranges at 100–1200 m. At higher altitudes it often grows with Nothofagus moorei or Ceratopetalum apetalum and Doryphora sassafras.
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