Erect, widely branched, annual, stinking herb, 0.25-0.75 m high. Stem, petioles, and nerves underneath sparsely set with small prickle-like, softish appendages. Leaflets 3(-5), upwards reduced and becoming subsessile, on short petiolules webbing at the insertion, thinly herbaceous, ovate-lanceolate, ciliate, central leaflet generally 2.5-3(-5½) by 0.75-1(-1.25) cm; base cuneate, top blunt; nerves 4-9 pairs; petiole generally 1.5-2.5(-8) cm. Racemes with reduced leaves. Pedicels filiform, 0.5-1.5 cm, 1½-2 cm in fruit, rather sparsely set with minute glandular hairs. Sepals 2-3 by 0.25-0.5 mm, acuminate to obtuse, glandular-hairy. Petals white, 4-5(-7) (including claw 1-2 mm) by 0.75-1.5 mm, oblong-lanceolate, top rounded. Stamens 6(-7), 4-6 mm; anthers c. 1 mm, linear, curved after anthesis. Gynophore c. 1 mm; ovary 3-4 mm long, linear. Fruit on a gynophore 3-6(-10) mm, 3-6 cm by 2 mm, cylindrical, tapering to both ends, the beak 2-8 mm; valves parallel-nerved, glabrous. Seeds sub-orbicular, c. 1.5 by 1.75 mm, dark-brown, with small paler centre, with very narrow-elevated, strongly prominent cross-ribs, and distinct obtuse concentric ribs, cleft closed; no elaiosome.
Home