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Description:
Andromonoecious shrubs to trees 1.5–6 m tall, branched, monocaulous to sparsely branched. Leaves palmately compound, 10-43 cm long (incl. petiole); leaflets 6–15, dark green above, slightly lighter beneath, dull to shiny, coriaceous or sometimes subcoriaceous, narrowly elliptic to narrowly obovate to obovate, 2.5–18 × 0.8–5 cm (leaflets 5–10 in juvenile foliage, linear to very narrowly obovate, 2.5–15.5 × 0.3–0.5 cm), glabrous, smooth above, primary vein slightly raised above, strongly so beneath, secondary veins slightly raised to impressed above, sometimes evidently so, only weakly raised beneath, 10–33 per side, tertiary veins usually obscure, the base decurrent, the margin entire, revolute or minutely revolute (Avangui), often coarsely undulate, the apex round to retuse (rounded in juvenile foliage), sometimes minutely mucronate; petiolule to 0–3 mm long (leaflets in juvenile foliage sessile); petiole 4–30 cm long, 2–4 mm diam., the base weakly clasping, neither inflated nor lentic3llate, the ligulate stipule forming a low collar ca. 2 mm high. Inflorescence terminal, paniculate-umbellate, spherical, lax and open, with 3 or 4 orders of branching, glabrous, axes often glaucescent in vivo, cataphylls not evident, bracts caducous, triangular to subulate, ca. 2.5 mm long, the primary axis erect, 2–12 cm long, the secondary axes ca. 5–8, 1–3 borne laterally along the primary axis, the others forming a terminal, umbellate cluster, each ca. 4–28 cm long, tertiary axes ca. 7–10(–13) per secondary axis, 0–5 arranged singly and/or in pairs and/or a pseudo-whorl, the others in a terminal, umbellate cluster, each ca. 3–7 cm long, bearing a terminal umbellule of ca. 6–15 protandrous, hermaphroditic flowers and (1–)2–4 lateral umbellules of ca. 5–10 staminate flowers, pedicels of the hermaphroditic flowers 5–15 mm long at anthesis, ca. 0.4–0.7 mm in diam., those of the staminate flowers ca. 1–4 mm long, ca. 0.2–0.4 mm in diam., expanding to (6–)7–15 mm long in fruit, subtended by caducous bracts. Calyx rim forming a collar, irregularly undulate, 0.2–0.4 mm high, 1–1.5 mm in diam. Corolla globose to slightly oblate or ovoid in bud (globose to hemispherical), the petals 5, medium green tinged purple toward apex outside, pale green inside, triangular to ovate, 2.5 mm long in staminate flowers. Stamens 5, the filaments ca. 2 mm long, the anthers cream white, 1–1.5 mm long, with 4 thecae. Ovary 5-carpellate, ellipsoid to ovoid at anthesis (vestigial in staminate flowers), 2.2.5 mm high, disc depressed, 1.5–2 mm diam. in hermaphroditic flowers, 1.5 mm diam. in staminate flowers, styles 5, ca. 0.8–1 mm long in hermaphroditic flowers, expanding to 1–2 mm in fruit (vestigial and undivided in staminate flowers), united for ca. 1/4–1/2 of their length, free arms 0.5–1 mm, radiating to recurved. Mature fruit terete, ovoid to widely ovoid, 4–12 mm high, 3–6 mm wide, strongly ribbed when dry, the base rounded to slightly concave.
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