Slender twiner to 6 m high; new growth puberulous, with older stems glabrous; latex opaque, milky. Juvenile leaves narrow, hastate. Adult leaves glabrous; petiole 9–20 mm long; lamina narrowly triangular to broadly ovate, 3–12 cm long, 1.4–5 cm wide, cordate or rounded-truncate at base, long-acuminate to a fine point, green to purplish on lower surface; secondary veins 6–9 pairs, prominent, with minor veins barely visible. Inflorescence of axillary and terminal, umbel-like cymes, with 3–11 flowers; axes puberulous; pedicels 3–5 mm long. Calyx lobes puberulous, appressed. Corolla cream or yellowish, glabrous except for beard at throat; tube inflated, ovoid, 2–2.5 mm long; lobes recurved, oblong, 3–4 mm long, acute. Anther cone c. 2.6 mm long, ± enclosed, exserted only at tip; filaments slightly twisted; anther tails slightly divergent. Nectary scales free, entire. Capsules slender, very narrowly terete, 5–7 cm long, c. 0.5 cm diam., glabrous.
Grows in tall eucalypt forests and in subtropical and warm-temperate rainforests, usually in clay soils derived from metasediments, at altitudes of 100–800 m.
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