A decumbent to ascending shrub with branches up to more than 0.6 m long, with branches ascending to ±0.3 m. Young branches with short or rather long-villous pubescence. Leaves rather spreading, linear, 1.5-3 mm long, slightly more slender than in A. ericifolia, subterete, straight, acute, with sparse, spreading pubescence (to glabrous or short-villous). Flowers, as in A. ericifolia, distributed along the branch ends, for ±(30-)70-150 mm. Bract linear-filiform, much more slender than the leaflets, 1-2.1 x 0.15-0.25 mm, with spreading, puberulous pubescence. Pedicel very short. Bracteoles very thin, filiform, (0.2-)0.6-2.3 x 0.1-0.2 mm, pale or green. Calyx sparsely or rather densely patent-tomentose; lobes narrowly subulate, tapering, thin, 1.5-4.5 mm long, acuminate, slightly recurved, subglabrous or with variable dense spreading pubescence. Petals yellow. Standard narrowly elliptic, 5.5-7.5(-8.5) x 3.2-4.5(-5.5) mm, apically slightly incurved, acute, short-tomentose. Wing blades linear, (4-)4.4-6(-7) x 1.1-1.6(-2) mm, glabrous or with some tomentose pubescence near the apex; upper part with 1-2 rows of minute folds. Keel blades (3.6-)4-5.5 (-6) x 1.5-2 mm, obtuse to subacute, slightly tapering, with almost straight upper margin; lower apical parts tomentose. Wing and keel claws basally attached to the staminal sheath and wing blades basally attached to keel pouches. Pistil stipitate, with tomentose ovary and glabrous style. Ripe pods not seen.
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Sprawling shrublet with branches to 60 cm. Leaves 3-foliolate, leaflets linear, subterete, straight, with short, spreading hairs. Flowers solitary on short shoots, scattered along branches, bright yellow, wings glabrous or with some hairs near tip, keel hairy, calyx hairy, lobes awl-shaped, slightly recurved, subglabrous.