Trees, small, ca. 6 m tall. Branches and petioles red when dry, nearly terete, strong, stout, striate or grooved, pilosulose or subglabrous. Leaves with petiole to 70 cm; leaflets 3-5 pairs; petiolules 0.8-15 mm, inflated; blades usually grayish green, lanceolate-oblong or sometimes linear-obovate, 20-40 × 6-14 cm, papery, glabrous, lateral veins 18-20 pairs, prominent on both sides, reticulate veinlets conspicuous, base narrowly cuneate, margin entire, apex acuminate. Thyrses narrow, racemose or with 2-4 racemose branches near base, 5-18 cm, shortly tomentose, usually solitary on stems (or above axils). Pedicels 5-10 mm. Sepals nearly broadly ovate, 3.5-4.3 mm, abaxially ferruginous tomentose. Petals 5, linear to linear-spoon-shaped, ca. 6.2 mm, often erose or nearly entire, abaxial surface of claw and margin of adaxial surface villous; scales connate to claw margin, villous, apex 2-lobed, reflexed. Disk nearly acetabuliform, glabrous. Stamens 8; filaments villous. Ovary ferruginous villous, 3-lobed, 3-loculed; style nearly as long as ovary; stigma capitate. Fl. late autumn.
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