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Mericarps 9–12 mm. long, broadly elliptic-suborbicular, pale brown, emarginate at the apex, with an inflated portion containing the seed, 2-winged, 1·5–2·5 mm. broad, with an unveined marginal zone and many fine cross-veins on the inner zone extending from transverse ridges on the back of the central portion.
Leaf-lamina up to c. 8 × 6 cm., palmatipartite; segments usually 5, 3–7 cm. long, lanceolate, acute, sharply serrate or dentate-lobulate, sparsely stellate-pubescent on both surfaces and glandular-ciliate on the margin; petiole 2–7 cm. long, terete; stipules 7–10 mm. long, filiform, pubescent.
Perennial herb or shrub, 0.75-1.25 m high, often viscid and slightly scabrid. Leaves palmatipartite, segments 5, lanceolate or oblong-lanceolate, usually serrate. Epicalyx much longer than calyx. Mericarps winged. Flowers pale yellow.
Erect probably perennial herb or soft-wooded shrub, 0·75–1·25 m. tall, usually branched mainly at the base, with short often glandular hairs and longer stiff simple or bifurcate hairs.
Epicalyx of 10–15 bracts; bracts 25–35 mm. long, linear-filiform, acute, nearly free, shortly glandular-pubescent and with sparse bulbous-based long stiff spreading hairs.
Flowers pale yellow, solitary in the upper axils, often forming a leafy terminal pseudoraceme; pedicels 2–5 cm. long, terete.
Calyx c. 10 mm. long, pubescent and glandular, divided nearly to the base; lobes ovate-lanceolate, acuminate, 3-nerved.
Petals 2–3 cm. long, with fine soft stellate hairs on the outside.
Seeds c. 5 mm. long, ovoid, brown-pubescent.
Staminal tube glabrous.
