Annual or short-lived perennial, fleshy herb or subshrub 40–100 cm high, viscid; young stems sparsely hairy. Leaves with petiole (10–) 30–50 mm long; lamina broadly ovate, (90–) 100–140 (–180) mm long, (40–) 70–85 (–125) mm wide, truncate to subcordate at base then sharply attenuate into upper petiole, bluntly and coarsely crenate, acute; upper surface ±shiny, lacking ‘cysts’, with sparse hairs on major veins, otherwise glabrous, or sometimes with minute (0.1 mm) sparse conical hairs on lamina. Panicles on slender peduncles. Capitula ±globose, 6–8 mm diam.; involucral bracts in 2 series, oblong (rarely lanceolate), 4–5 mm long, shortly fused at base, sparsely hairy abaxially, especially at base. Florets white to pale lilac. Achenes curved-deltoid, 3-angled, 3.0–3.5 mm long, smooth, glabrous or with minute glandular hairs, black at maturity.
Found in damp spots in grassy forests, on rainforest margins, roadsides, mud and edges of swamps, on granite, at altitudes of 680–1150 m.
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