Shrub 3–5 m. high, with an erect stem spreading only near the apex.. Bark smooth and grey; young shoots ± brown pubescent but soon glabrescent.. Leaves: petiole 3–7 mm., pubescent, the interpulvinary part usually visible but often shorter than each pulvinus; lamina elliptic-or obovate-acuminate, 2.5–7 cm. long, 1.4–3.7 cm. wide, rounded at the base, the apex rather conspicuously prolonged into a short, rounded or emarginate acumen; lower surface sparsely and shortly pubescent or glabrous except for the fairly densely pubescent midrib, the upper surface glabrous.. Flowers in very short lax racemes of 2–4 flowers grouped together on short leafy shoots into a pseudopanicle; pedicels (3–)4–11 mm.; bracts up to 1 mm. long, caducous; bracteoles filiform, 1–3 mm. long, inserted 0.5–4 mm. below the calyx.. Buds slightly acuminate at the apex.. Calyx 8–10 mm. long, rather thinly appressed or spreading pubescent, splitting down the lower side and leaving usually 2 unequal teeth at the apex.. Petals white with a yellow blotch towards the base of at least the standard; standard 13–15 mm. long; wings and keel 11–13 mm. long.. Stamen-filaments glabrous; anthers ± 0.8 mm. long.. Ovary with longish ± appressed hairs on the margin, the surfaces ± glabrous.. Pods ± 9–10 × 2.5–2.8 cm., blackish, glabrous.
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