Leaflets 4–9 × 1.5–6.0 cm, rhombic, obovate or elliptic, discolorous, glabrescent to finally pubescent above, softly hairy beneath; petiole 4.5–8 cm long; rhachis 0.5–1.2 cm long; petiolules 2–5 mm long.
Inflorescence a lax pseudoraceme covered in dense ferruginous hairs; peduncle 2–6 cm long; rhachis 8–16 cm long; pedicels 1–3 mm long; bracts and bracteoles tiny.
Calyx evenly hairy or less hairy on the tube; tube 1–2 mm long; lobes 1–3 mm long, unequal, the upper pair largely joined.
Seeds 2–3 × 1–2 × 1–2 mm, oblong, compressed, smooth, light or dark brown, with small rim aril.
Robust climber up to 3–7 m long, with markedly angled stems in the Flora Zambesiaca area.
Pods 3–5.5 cm × 2–4 mm, linear, covered with long soft white hairs; beak 2–4 mm long.
Standard 3–6 × 2–4 mm, obovate, white, orange or blue.