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An erect shrub. It has many branches. It can grow 1-3 m tall. The branches are black. Young parts can have a rusty covering of hairs. There is usually one leaflet but there can be three. They are silver or grey underneath. They are 3-9 cm long by 1-4 cm wide. There are hairs underneath. The flower clusters are at the ends of branches. The standard is yellow and the keel is a paler yellow. The fruit are pods 2-3 cm long by 1 cm wide. They have a dense covering or golden or grey hairs. The seeds are black and shiny. They are 6-8 mm long by 4-5 mm wide and 3 mm thick.
Leaflets 1, more rarely 3, silvery or greyish beneath, 2.5–8.5 × 1.2–4.2 cm, elliptic to oblong-elliptic, acute or rounded at the apex, mucronulate, cuneate or rounded at the base, glabrous to densely pubescent above, densely to finely pubescent beneath and usually with numerous small orange-red glands on both surfaces; venation prominent beneath forming a raised network or at least lateral nerves prominent; petiole 4–10 mm long; petiolules 1.5–3 mm long; in 3-foliolate leaves petiole 1–2 cm long and rhachis 1–5 mm long.
Standard yellow inside, brown outside, 1.4–1.7 × 1.1–1.4 cm, elliptic or almost round, with appressed silvery or ferruginous silky hairs outside; wings orange or yellow; keel paler yellow.
Pods 2–3 cm × 9–10 mm, elliptic or elliptic-oblong, with a velvety covering of densely matted golden or silvery-grey hairs and numerous orange glands.
Calyx covered with appressed silky hairs, glandular, c. 5 mm long; lobes deltate, shorter than the tube.
Flowers in terminal panicles or with some axillary inflorescences as well; pedicels 2.5–5 mm long.
Branches blackish, the younger parts greyish or pale ferruginous pubescent, older parts glabrous.
Seeds black, shiny, 6–7.5 × 4–5 × 2.5–3 mm, oblong-ovoid; rim aril pale brownish.
Erect much branched shrub or subshrub (0.6)1.2–3 m tall.
