Often invested with remains of dead leaves at base; not rhizomatous. Leaves once pinnate, sub-fleshy, 15-40 (60) cm long, (3) 5-15 cm broad; leaflets 5-9 pairs, each 1.5-7.5 cm long, 1.5-6.5 cm broad, sessile, obliquely ovate-oblong to rhomboid, acute to obtuse, simple, rarely incised, glaucous beneath, stomata restricted to the lower surface, margins serrate, sometimes crenate; petioles 7-13 (30) cm long 2.5-6 mm in diameter; sheaths 3-7 (9.5) cm long, 7-20 mm broad at the base. Inflorescences 25-55 cm long with axes 3.5-7 mm in diameter; compound umbels 2-4 per inflorescence; simple umbels 5-25 per compound umbel; bracts free; flowers 15-30 per simple umbel; styles 1.5-3.5 mm long; mericarps of fruits 5-6 mm long, 2.5-3 mm broad, lateral ribs produced into wings.

n = 11

2n = 22