Shrubs or trees to 10 m. tall, the branchlets terete, rugose. Leaves palmately compound; leaflets 5-9, the blades elliptic to oblong-oblanceolate, 10-25 cm. long, 3-9 cm. broad, long-acuminate at the apex, acute, cuneate or rounded at the base, both surfaces glabrous, serrate, undulate or entire, the costa prominent, the primary lateral veins 12-18 per side, arcuate-ascending; petioles 12-14 (-30) cm. long, ferrugineous-puberulent becoming glabrescent, the ligule oblong-lanceolate, to 8 cm. long, the petiolules 0.5-6.0 cm, long, canaliculate, densely to sparsely ferrugineous-puberulent. Inflorescences with umbels racemosely arranged in a 1-to 3-branched terminal panicle, ferrugineous-puberulent, the primary peduncle about 5 cm. long, the primary rhachis to 30 cm. long, the floriferous peduncles numerous, 6-15 mm. long, subtended by a bract to 3 mm. long; pedicels 1.5-3.0 (-5.0) cm. long. Flowers 7-10 per umbel; calyx obconic, 1 mm. long, the limb truncate; petals 2 mm. long, connate and calyptrate; filaments to 3 mm. long, the anthers approximately 1 mm. long, 0.5 mm. broad; styles 5-7, connate to the apex. Fruit sharply angled, 2.5-4.0 mm. in diameter, the styles often minutely spreading at the apex, the seeds 5-7 or fewer.
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