A prostrate, matted shrublet, densely branched, with rather coarse branches up to 0.6 m long or longer; young branches densely white-villous. Leaves rather densely set; leaflets 3-9 (or more) together, subulate, 4-7 mm long, ±0.5 mm thick, straight, terete, rigid, glabrous, glaucous, rigid, tapering into a sharp apical spine. Inflorescences unifloral(-bifloral), on the ends of short branchlets, surrounded by the uppermost leaves. Bract small, subulate, 0.8-1.3 mm long, ciliate. Pedicel extremely short, villous. Bracteoles similar to the bract but only 0.5-0.8 mm long. Calyx glabrous externally, with short tube with 5(-10) ridges; lobes subulate, 3.7-4.3 mm long, straight, similar to the leaflets, subterete, glabrous, glaucous, tapering into a sharp spinelet. Petals pale yellow, glabrous, sometimes partly with violet shades, with short claws. Standard blades broadly ovate, 5.2-6 x ±4.5 mm, back with prominent middle ridge, greenish towards the apex and ending in a pointed, green-brown cusp 0.7-1 mm long. Wing blades narrowly obovate or elliptic, 3.2-3.5 x ±1.5 mm, with two distinct rows of small folds on basal half. Keel blades lunate, 3.2-3.5 x ±1.5 mm with upper-apical parts squarish. Pistil pubescent on upper side of ovary and basal half of style; ovules 2. Pod triangular-ovate, ±6 x 3.8 mm, strongly compressed, smooth, ciliate on upper suture.
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Prostrate, densely branched, matted shrublet with branches to 60 cm, like A. batodes but leaves glaucous and flowers smaller, keel blades 3.0-3.5 mm long.