Glabrous bush or small tree not more than 6 m. tall in our area; young branches rather soft and green becoming pale brown. Leaves 3-foliolate; leaflets 3.5–13 x 0.5–7 cm., membranous, elliptic or narrowly ovate, acute or acuminate at the apex, cuneate at the base, the lateral leaflets often asymmetric, undulate and crisped at the margin at least when young; petiole slender, up to 12 cm. long; petiolules up to 4 mm. long, articulate at the base. Flowers in lax, terminal or axillary, corymbose racemes; pedicels up to 7.5 cm. long; bracts similar to the leaves but smaller. Sepals c. 1.5 x 0.4 cm., free or almost free, lanceolate, acuminate, with a strong mid-nerve. Petals pale yellowish, yellowish-green or almost white, the two upper larger, up to 6 x 3 cm., elliptic, attenuate-acuminate at the apex, cuneate with a short claw at the base, undulate and crisped at the margins, with a distinct midrib, lower petals markedly smaller and narrower, 2–3 cm. long. Appendage diverging from the base of the gynophore, equalling or exceeding the sepals and divided into 5–6 filiform segments each terminating in an oblong appendage. Gynophore up to 12 cm. long with the 5–9 stamens adherent for 2/3–8/9 of its length; free portion of filaments up to 2.5 cm. long, slender, arising irregularly from the gynophore; anthers c. 0.9 mm. long, linear. Ovary c. 5 x 3.5 mm., ovoid. Fruit up to 9 cm. in diam., with a tough coriaceous pericarp, pale brown, globose above, narrowing abruptly below into a stalk 10–20 cm. long, which is thicker for the first 3–4 cm. below the globose portion. Seeds numerous, 1–1.3 cm. in diam., subglobose, brown, irregularly compressed.