Scrambling rhizomatous herb with stout rootstock, sparsely to densely pubescent; stems to several metres long, older ones quadrangular. Leaves often 2 per node, unequal, ovate or ovate-rhombic, mostly 1–1.5 cm long, 5–13 mm wide, apex obtuse or rounded, base attenuate, margins entire, both surfaces sparsely to densely pubescent; petiole 0.5–3 cm long. Flowers pendulous on pedicels mostly 7–10 mm long; calyx campanulate, 2–4 mm long, lobes narrow-triangular, 1–2.5 mm long; corolla urn-shaped, 6–8 mm long, white or cream, lobes triangular, 1.5–2 mm long; disc annular, fleshy; anthers c. 2 mm long. Berry conical, 13–18 mm long, 7–8 mm wide, obtuse, white or pale yellow, translucent; seeds 1.5–2 mm diam., narrowly winged, pale yellow. Flowers mostly spring–autumn.
MuM, Wim, GleP, VVP, VRiv, GipP, WaP, Gold, CVU, GGr, DunT, HSF, Strz. Also naturalised WA, SA, Qld, NSW, ACT, Tas. Apparently native to temperate South America; widely naturalized. A widespread plant found mostly in urban wasteland; declared a noxious weed in Victoria and difficult to eradicate due to the extensive root system.
