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Leaves petiolate; leaflets lanceolate to widely elliptic or obovate, acute to obtuse at apex, cuneate at base, thinly pilose on both surfaces; terminal leaflets 1.5–3 times as long as the petiole, 17–35(44) × 6–17 mm; petioles 4–13 mm long, pilose; stipules 6–13 × 1.5–4 mm, ovate to narrowly lanceolate, acuminate, some of them joined at first to above the middle along the leaf-opposed margin, usually becoming free.
Corolla bright yellow; standard 8–10 × 7–8 mm, obovate, silky pilose outside; wings 8–10 × 2.5–4.4 mm, with rows of folds between the upper veins; keel as long as the wings, the petals with a crest on the lateral surface towards the base, not appendiculate, with claw c. 2 mm long.
Inflorescence terminal, usually a subumbelliform raceme, (1)2–6-flowered (usually 8–24-flowered in the Southern Highlands of Tanzania); peduncle 8–16 cm long; bracts 3–9 × 1–2 mm, linear-lanceolate, entire.
Calyx (7)8–10 mm long, densely to sparsely silky pilose; upper lip divided to ± the middle, the lobes lanceolate; lower lip with teeth 5–6 mm long, narrowly triangular, acute.
Pod up to 40 × 5 mm, narrowly oblong, flat, densely subappressed pilose, with c. 10–14 seeds.
Perennial herb with several trailing and decumbent or ascending stems from a woody taproot.
Stems up to 45 cm long, slender, laxly branched, rusty pilose.
Seeds c. 2.5 × 2 mm, light brown.
