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Calyx covered with very short tubercular-based hairs and some fine pubescence as well, 7–9(11) mm long, the upper lip very shortly 2-fid or divided for about one-quarter of its length into 2 oblong rounded lobes, the lower lip deeply 3-lobed, the lobes 3–3.5 mm long, oblong or elliptic, blunt, the inner the narrowest.
Inflorescences axillary, usually ± strobilate, 15–25 mm long, bristly yellow hairy; peduncles 5 mm long, similarly hairy; pedicels 4–5.5 mm long; bracts 4 × 2 mm, obliquely ovate, acuminate, with short tubercle-like hairs; bracteoles 3–3.5 × 1.2 mm, lanceolate or ovate-lanceolate, with similar hairs.
Stems covered with tubercles which render them scabrid; these tubercles correspond to the tubercular-based hairs of other species but the hair part is greatly reduced in this species; the older stems are purple-brown, ridged, lenticellate and glabrescent.
Fruit of 1–2 articles, each article 3 × 2 mm, 1.2 mm thick, compressed oblong-ellipsoid, pubescent.
Seed dark brown, 2.4 × 1.8 × 1.2 mm, ellipsoid-reniform; hilum minute, very eccentric.
Standard yellow, 12–13 × 6–10 mm, round or elliptic, glabrous; wings and keel yellow.
Ovary 2-ovuled, pubescent.
Shrub 0.9–3 m tall.
