Trees, to ca. 15 m tall, hermaphroditic. Branches prickly. Leaves palmately compound; petiole 30-60 cm, stout; petiolules 1.5-4.5(-15) cm, 2.5-5 mm in diam., both surfaces densely ferruginous hispid when young; leaflets 5-7, ovate-oblong or oblong-lanceolate, 15-30(-50) × 6-17(-28) cm, leathery, both surfaces densely ferruginous stellate tomentose or bristly when young, later abaxially sparsely stellate pubescent, densely so on veins, later adaxially subglabrous, secondary veins 10-18 pairs, distinct on both surfaces, base broadly cuneate to truncate or rounded, margin entire or sparsely aristate-serrulate, apex acuminate or long acuminate. Inflorescence terminal, pendent, densely ferruginous bristly; primary axis to 70 cm, very stout; peduncles numerous, 1-6 cm at anthesis, to 9 cm in fruit; umbels 3.5-5 cm in diam. in fruit; pedicels 1-2.5 cm. Ovary 2(-4)-carpellate. Fruit not seen. Fl. Sep-Oct, Mar, fr. (immature) May.
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