Erect subshrub 0.3–0.6 m high; young stems slightly 4-angled or ridged, grey and green or brown, strigose with sparse to moderately dense, small, appressed, equally biramous hairs. Leaves unifoliolate with a conspicuous point of articulation; stipules triangular, 0.5–1 mm long, pubescent, not persistent; petiole 9–21 mm long; rachis furrowed; multicellular hairs at point of articulation moderately dense, inconspicuous, dark brown, club-shaped. Leaflet with inconspicuous stipellae, 0.2–1 mm long; lamina ovate to orbicular, 25–103 mm long, 20–60 mm wide; upper surface grey and green, glabrous or with sparse, very small appressed hairs; lower surface grey and green, paler than above, glabrous or with sparse, very small appressed hairs; apex obtuse or acute and apiculate; veins visible but not prominent. Inflorescences 35–115 mm long, longer than leaves; peduncle 6–24 mm long; bracts triangular, 5–8 mm long; flowers pink to purple, pedicel 2.5–3.5 mm long. Calyx 1.5–2.3 mm long, with subequal lobes less than or equal to the length of the tube, and moderately dense, hyaline, white or brown, appressed hairs. Standard pink or lavender, ovate; 6–8 mm high, 5.3–6.5 mm wide. Wings spathulate to narrowly obovate, 5.3–8 mm long, 1.5–2.5 mm wide. Keel 6.3–8 mm long, 1.5–2 mm deep; lateral pockets 0.6–1 mm long; apex acute; hairs sparse to moderately dense, hyaline to golden along the bottom; margin ciliate. Staminal tube 3.2–4 mm long, free ends, or free ends and tube, pigmented. Ovary moderately hairy. Pods ascending to descending, terete, 21–40 mm long, 2.5–3 mm deep, brown, strigose; hairs very small, moderately dense, appressed; apex shortly beaked; endocarp spotted; seeds 6–8 per fruit.
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