Perennial with twining, sometimes trailing stems, sparsely to densely hairy. Mid-stem leaves triangular, ovate or oblong in outline, 10–80 mm long, 3–40 mm wide, entire, apex acute to obtuse, mucronate, base hastate or sagittate, basal lobes entire or sometimes asymmetrically notched at tips, sparsely to densely appressed-pilose; petiole 2–20 mm long. Flowers 1 or 2, rarely 3; peduncles 5–42 mm long; pedicels 3–16 mm long, shorter than peduncles, straight or sinuate in fruit; bracteoles linear to subulate, 1.3–3 mm long; sepals elliptic to suborbicular, 4–6(–7) mm long, moderately to densely silky, apiculate; corolla funnel-shaped, 8–12 mm long, pink, occasionally white, mauve or reddish purple, throat creamish green. Capsule globose to globose-ovoid, 5–7 mm diam., style-base persistent; seeds finely punctate, with low irregular ridges and tubercles and a narrow continuous to broken wing on outer margins, glabrous. Flowers mainly spring and summer (but spasmodic throughout the year).
LoM, MuM, Wim, GleP, VVP, VRiv, MSB, RobP, MuF, GipP, Gold, CVU, GGr, DunT, NIS, EGU, WPro, HSF. Also NT, SA, Qld, NSW. Known with certainty in Victoria from north-western and north-central ares, with an isolated collection from Wilsons Promontory. It has been recorded mainly from heavier soils of river banks and floodplains, but also occasionally on sandy soils.
