Sapwood surface corrugated. A thin, pale brown layer normally present beneath the subrhytidome layer before the first section of the outer blaze.
Leaflet blades usually rather large, up to 23 x 12 cm. Leaflet stalks short and shallowly channelled. Lateral veins curved throughout their length but not forming definite loops. Midrib and main lateral veins raised on the upper surface of the leaflet blades. Small foveoles usually present on the lower surface of the leaflet blades.
Inflorescence about 11.5-27.5 cm long, approximating or exceeding the leaves, pedicels about 5-9 mm long. Calyx about 2 mm long, pubescent. Petals about 3 mm long, with two large, hairy, glandular scales on the inner surface. Stamens eight. Staminal filaments hairy, about 4-6 mm long, inserted on the inner side of the disk. Ovary pubescent.
First pair of leaves compound with four leaflets (rarely two), leaflets toothed, ‘terminal‘ leaflet reduced to a linear appendage, rhachis usually winged. At the tenth leaf stage: leaflet blades +/- elliptic, apex acuminate, base cuneate, 2-4 blunt teeth along each side on the upper 1/3 of the leaflet blade, glabrous, midrib raised on the upper surface; petiole and rhachis with a few, short, pale hairs. Seed germination time 15 to 28 days.