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Inflorescences terminal and also in upper axils, often forming a terminal panicle, 3–24 cm long, glabrous or sparsely puberulous; peduncles 5–20 mm long; pedicels 3–13 mm long, glabrous or sparsely puberulous; bracts 4–5 × 1–1.5 mm, elliptic or elliptic-lanceolate, entire, denticulate or 2-fid, ± ciliolate, very deciduous; bracteoles 3–4 × 1 mm, ovate-lanceolate, deciduous.
Stems unbranched or sparsely branched, erect, the flowering ones often almost leafless, all pubescent with tubercular-based hairs or glabrescent when young, later glabrous and with a peeling bark.
Standard yellow or orange-yellow, 7–10 × 3–4.5 mm, violin-shaped or ± rectangular, slightly emarginate; wings and keel yellow, the petals of the latter not laciniate.
Fruit of 1–2 articles joined by a very narrow neck; articles semicircular, 5–8 × 4.5–6.5 mm, glabrous, reticulate and finely covered with raised dots when adult.
Calyx glabrous, 2-lipped; lips 5–8 × 3.5–4.5 mm, oblong, not or scarcely ciliolate, one 2-lobed the other 3-lobed.
Seeds dark purplish-brown, 4.7 × 3 × 1.2 mm, semicircular-ellipsoid; hilum small, almost circular, eccentric.
Subshrub with several stems 9–80 cm tall from a woody rhizome-like rootstock.
