Perennial; stems twining, glabrous but minutely muriculate.. Leaf-blade round in outline, biternately or pedately or palmately 7–9-lobed, up to 3.5 cm. long and 5 cm. wide; lobes linear, ± acute and aristate or mucronulate, 2.5–3 cm. long and 2–3 mm. wide; petiole muriculate, 1.5–2.5 cm. long; pseudo-stipules present.. Peduncle axillary, 1–few-flowered, 0.5–1 cm. long; pedicels up to 2–4 cm. long.. Sepals suborbicular or elliptic, the inner larger, not noticeably gibbous at the base, 4–6.3 mm. long, 4 mm. wide, reflexed in fruit.. Corolla pink or mauve, up to 7.5 cm. long.. Capsule globose, about 8 mm. in diameter.. Seeds subglobose-trigonous, about 4 mm. in diameter, brown with adpressed pubescence and with long white hairs on the angles.. Fig. 23, p. 124.
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