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Somewhat foetid annual herb to c. 1 m tall, ± puberulent, at least when young. Stems light green. Petiole to 8 cm long. Lamina 5-18-(25) × 4-16-(20) cm, broadly ovate, shallowly lobed; veins somewhat puberulent, especially above; apex of lobes obtuse or subacute. Calyx 2.5-3.5 cm long, ribbed, reflexing at fruiting; teeth 3-5 mm long, subequal. Corolla c. 5 cm long, funnelform, white; lobes 1-2 mm long, aristate. Fr. to 5-(6) × 3-(4) cm (excluding spines), narrowly elliptic-ovoid, erect; spines moderate in number, to 2.5-(3) cm long, stout, the uppermost > lower. Seed c. 4 mm wide, subreniform, black, rugose.
Erect, branched, subherbaceous annual, up to 1.5 m high, ± pubescent; bad smell when crushed. Stems round to angled, green or ± brown. Leaves ovate, up to 200 x 200 mm, margins sublobed, irregularly dentate, dark green above, paler below; petioles up to 80 mm long. Flowers solitary, axillary on pedicels up to 15 mm long. Calyx up to 30 mm long, cylindrical, bases reflexed and enlarged in fruit. Corolla narrowly funnel-shaped, up to 65 mm long, white or cream-coloured. Seeds compressed kidney-shaped, 4 mm long, finely pitted, large depressions on backs, grey-brown. Flowering time Oct.-May.
Annual herb, up to 1 m high. Leaves petiolate, simple; blade ovate, up to 200 mm long, margins coarsely and irregularly toothed, veins prominent, upper surface dark green, lower surface paler. Flowers: solitary; pedicels slender, pubescent, up to 10 mm long; calyx 25 mm long; corolla up to 65 mm long, white or cream-coloured; Aug.-Apr. Fruit an ovoid capsule, up to 70 x 60 mm, covered with stout, spreading, spine-like outgrowths of similar length, up to 30 mm long.
Annual herb, up to 1 m high. Pedicels slender, pubescent, up to 10 mm long. Calyx 25 mm long. Corolla up to 65 mm long. Fruits up to 40 mm in diameter, covered with stout spreading spines up to 25 mm long. Flowers white or cream.
