Herbaceous annual. Stems usually several from base, procumbent, trailing, rather slender, ± 1.5 m long, ± angular, glabrous or thinly hairy. Leaves deeply palmately to pedately 7-11-sect, 20-80 mm wide, glabrous above, thinly pubescent beneath; leaflets linear-oblong, narrowly oblong-lanceolate or spathulate-obo-vate, acute or obtuse, apiculate, contracted at base, lateral ones gradually smaller; petiole 20-60 mm long. Inflorescence 1-flowered or rarely cymosely 2- or 3-flowered; peduncle up to 50 mm long; bracteoles linear or linear-lanceolate, acute, thinly pubescent, 5-8 mm long; pedicels 5-30 mm, at first erect or patent, ultimately reflexed. Calyx turbinate, 10-15 mm long in flower, inflated in fruit; sepals unequal, ovate, subobtuse to acuminate, ± 8 mm long, concave, softly pubescent, pale green, with 6 or 7 longitudinal, purple-brown nerves, deeply sulcate-plicate and with small purplish spots, hairy on nerves, very accrescent in fruit; inner ones shorter and narrower, less concave, withÂout or with only a few purplish stripes, not sul-cate or plicate, hardly accrescent in fruit. Corolla widely funnel-shaped, 15-20 mm long, 20-30 mm wide, yellow or whitish with purÂplish centre; limb shallowly 5-lobed to pentaÂgonal; midpetaline areas not distinct, glabrous or thinly pubescent towards base. Capsule comÂpletely enclosed by inflated calyx, 4-lobed and somewhat depressed, 8-12 mm wide, pericarp very thin, membranous, scarious, white, sub-hyaline, irregularly dehiscent to 4-valved. Seeds 1-4, black, shiny, smooth, glabrous except for minute flattened hairs along ciliate angles and shortly pubescent hilum; 5-6 mm long. Flowering time December to April.
