Much branched shrub 0.3-0.6 m high. Bark dark grey-brown, flaking minutely; young branchlets reddish-brown, densely and persistently appressed pubescent, with numerous small conspicuous dark purplish glands scattered in amongst the hairs. Stipules spinescent, in pairs, 0.8-1.4 cm long, reddish-brown, straight or often deflexed, slender. Leaves: petiole short, mostly 2-6 mm long, grey-puberulous, adaxial gland absent; pinna 1 pair; rhachillae 0.4-1.8 cm long, subglabrous or puberulous; leaflets 2-4 pairs per pinna, 2-5.5 x 1.2-3.5 mm, oblique, oblong or elliptic or ± subrotund, apex rounded or obtuse, sparingly to densely appressed pubescent on both surfaces or on the lower surface only, midrib and lateral nerves not visible or inconspicuous beneath, with minute reddish glands at the point of attachment of the leaflets. Inflorescences apparently capitate, reduced, on axillary peduncles; flowers 2-4 per inflorescence or rarely apparently solitary. Flowers apparently densely pubescent. Corolla 4-6 mm long, lobes tinged with red or purple apically, densely appressed pubescent or tomentellous. Stamen-filaments 14-17 mm long, pinkish, shortly connate basally and tubular for ±2 mm. Ovary ±1.5 mm long, shortly stipitate. Pods pinkish-brown, 2.6-3.2 x 0.9-1.1 cm, linear-oblong, straight, 1-2-seeded, densely appressed grey-puberulous, with small conspicuous dark purplish sessile glands among the hairs, dehiscent, acute or acuminate apically. Seeds not seen.
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Much-branched, thorny shrub, 0.3-0.6 m tall, young branchlets densely hairy, with conspicuous dark purplish glands. Leaves twice pinnate, grey-hairy, stipules paired, spinescent, straight or curved, pinnae paired, each bearing 2-4 pairs of oblique, oblong, elliptic or rounded leaflets, with minute glands at attachment point. Flowers (1)2-4, in axillary heads, pinkish, densely hairy. Pod linear-oblong, straight, densely grey-hairy, glandular.