Creeping or sometimes erect herb; stems to 1 m long, pubescent or puberulent. Leaves: pseudo-stipules absent; petiole 0.6–4 cm long; lamina oblong to broadly oblong, obovate or narrowly to broadly lyrate, 1–13 cm long, 0.8–8.6 cm wide (including basal lobes), puberulent above, pubescent or puberulent with multi-celled hairs on veins below; base shallowly cordate, sagittate-auriculate, auriculate or rarely truncate; apex obtuse, rarely emarginate. Flowers solitary; pedicels 0.2–0.4 cm long. Calyx geniculate, creamish or pale green with purplish brown limb, sparsely pubescent outside; utricle globose, 0.5–0.7 cm long; tube 5–12 mm long; limb 1-lobed, linguiform, 1.5–2.5 cm long, 0.2–0.3 cm wide, rounded at apex. Fruit globose or obloid, 1–2.5 cm long, 1–1.3 cm diam., not beaked. Seed triangular, concave-convex, 3–4 mm long, c. 3 mm wide, c. 0.5 mm thick, verrucose on convex face, not winged.
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