Prostrate annual up to 0.4 m wide. Branches sparsely leafy, minutely hirsute. Leaves invariably 3-foliolate, (5-)8-12(-15) mm long; petiole as long or longer than the terminal leaflet; leaflets relatively small, obovate, (2-)5-7(-9) x (1-)2-4(-5) mm, base cuneate, apex rounded to truncate, minutely but densely pubescent on both surfaces. Stipules single at each node, small, lanceolate to ovate, up to 3 x ±1.5 mm, minutely pubescent on both surfaces. Inflorescences in terminal and leaf-opposed racemes, (3-)6-12(-15)-flowered; peduncle short, (2-)3-6(-12) mm long; bracts small and inconspicuous, lanceolate, ±1 mm long; bracteoles absent. Flowers small, 7-8 mm long, yellow; pedicel up to 2 mm long. Calyx subequally lobed but with the lower lobe much narrower and slightly shorter than the upper four lobes; lateral sinuses a little shallower than the upper and lower ones; lobes narrowly triangular, acute. Standard suborbicular, much shorter than the keel; claw short, ±1.5 mm long; lamina ±4x3-4 mm, without lobes or callosities, abaxially pubescent along the apex. Wing petals oblong, much shorter than the keel, distinctly auriculate; pubescent along the apex; sculpturing in ±4 rows of intercostal lunae, fading into transcostal lamellae towards the auricle. Keel petals broadly oblong, wider towards the obtuse apex, only slightly auriculate; claw ±3 mm long; lamina 5-6 x ±3 mm, pubescent on most of the upper half. Androecium long and narrow; anthers dimorphic; basifixed anthers oblong, almost twice as long as the small ovoid dorsifixed anthers; carinal anther similar to dorsifixed anthers. Gynoecium shortly stipitate; pistil very small, ovoid-oblong, pubescent, with 1 or 2 ovules; style with the basal part straight, broad and pubescent, the upper part short, slender, glabrous. Pods very small, ovoid, ± as long as the calyx, 3-3.5 x 2-2.5 mm, shortly stipitate, compressed (not inflated), densely pubescent, indehiscent (?); upper suture minutely verrucose, 1 or 2-seeded. Seeds suborbicular, ±1.2 mm in diameter, testa pale orange-brown, sparsely and minutely tuberculate.
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