Perennial herb to 50 cm high, rhizomatous, glabrescent or sparsely pubescent with minute simple hairs. Leaves alternate, 1–2 per node, elliptic, up to 9 cm long and 3.5 cm wide, apex acute to acuminate, base cuneate, margins entire or slightly toothed or lobed; petiole to 3 cm long, grooved above. Flowers on pedicels 8–15 mm long; calyx usually 8–10 mm long, lobes narrowly triangular, 5–6 mm long; corolla rotate, 10–12 mm long, greenish-yellow with dark spots between anthers; anthers 2–4 mm long; style 6–8 mm long, stigma capitate, somewhat expanded. Fruiting calyx 10-angled, 15–25 mm long, pale green; berry globose, c. 10 mm diam.; seeds disc-shaped to broadly reniform, 1.5–2 mm long, brown to yellow-brown. Flowers mostly summer.
Naturalised in Qld, NSW. Native to Canada, U.S.A., and Mexico. Collected twice in Victoria (Dookie and Swan Hill) over 100 years ago.
