Stems long, slender, twining, armed with stinging hairs. Leaves distinctly to long petioled, membranous, oblong-lanceolate or oblong, acute, base rounded, truncate or shallow wide-cordate, margin serrate, 2–3 in. long, 3/4–1 1/2 in. wide, slightly bristly especially on the nerves on both surfaces, otherwise glabrous; petiole 1/2–1 1/2 in. long; stipules lanceolate, erect, 1 1/2 lin. long. Racemes lateral, slender, rather lax, 1–1 1/2 in. long, with a solitary female flower at the base on a pedicel as long as the rest of the raceme; bracts lanceolate, ascending, pubescent, persisting. Male sepals 3, ovate. Stamens 3, or casually 1–2; anthers extrorse. Female calyx-segments 6, lanceolate, very slightly accrescent. Ovary setose; styles 3, glabrous, united below in a column. Capsule 3-coccous, sparingly setose, 1/4 in. across; cocci subglobose. Seeds globose, pale straw-coloured, mottled with brown.
