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Description:
Dioecious or possibly andromonoecious tree up to 8 m tall, with leaves crowded at the ends of the branchlets. Leaves once-pinnate, 30–40 cm long; leaflets 18–21, lamina drying olive green, somewhat paler below, coriaceous, ovate, (4.5–) 5–7 × 2.5–3 cm, the apex acute to acuminate, the margin entire, sometimes undulate or very shallowly crenate, slightly thickened and minutely revolute, the base strongly asymmetric, rounded to cordate; petiolules 3–6 mm long; rachis articulated at insertion of leaflets, glabrous; petiole very sparsely pubescent (especially toward the base), without an alate base. Inflorescence a panicle of umbellules, terminal, erect, broadly elliptical, the axes puberulent throughout; the bractlets early caducous, narrowly triangular; the primary axis 14 cm long; the secondary axes 12, scattered, (7–) 9–14 cm long; the tertiary axes 10–18 per secondary axis, typically clustered in groups of two or three, (6–) 9–26 mm long, each with a terminal umbellule of 12–17 flowers; pedicels 3–4.5 mm long, 0.5 mm diam., articulated below the ovary. Calyx collar-like in pistillate flowers, ca. 0.7 mm tall, rim entire or with ca. 5 minute apiculate teeth. Corolla in bud hemispheric (in pistillate flowers) to spherical (in staminate flowers); the petals 5, in pistillate flowers, petals not seen; in staminate flowers, petals narrowly triangular, 2 mm × 1–1.2 mm (mostly in bud). Stamens in bud with filaments <0.2 mm in bud, anthers yellow-brown upon drying, ca. 1.2 mm long. Ovary of pistillate flowers (in bud) 2-carpellate, elliptic, strongly flattened, 4–5 mm tall, glabrous; ovary of staminate flowers vestigial, obconic; styles (presumably) 2. Mature fruit unknown.
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