Annual, at first stemless, later usually with several stems, extremely variable in size according to habitat, from prostrate to c. 60 cm high and c. 1 m across, densely glandular and ± musk-scented. Lvs to c. 30 cm long, pinnate, with petiole sometimes = lf rachis. Leaflets sessile, pinnately lobed; lobes ± ovate, serrate. Stipules broad-ovate or suborbicular, membranous, silvery, obtuse. Umbels c. 12-flowered; bracts broad, membranous, obtuse; peduncles and pedicels densely glandular, < to slightly > calyx at anthesis. Sepals 4.5-6 mm long, lanceolate-oblong, densely glandular, mucronate. Petals 4.5-8 mm long, pink or mauve-pink; claw very short; limb ± elliptic-oblong, sometimes almost obovate. Stamens 3-4 mm long; filaments widened at base, white or pink, usually with a small membranous tooth on 1 or both sides, rarely without teeth; anthers dark purple. Staminodes lanceolate. Fr. beak 3-3.5 cm long, puberulent. Mericarps densely hirsute with hairs of differing length; apical pits prominently glandular, with 1 broad, glabrous furrow beneath.