Perennial, occasionally annual, herb up to 60 cm tall, often with annual shoots produced from a woody rhizome. Stems slender, branched, densely crisped-pubescent, sometimes patent-pubescent. Leaves alternate, subsessile (petiole up to 0.1 mm, pubescent), narrowly oblong-lanceolate to oblanceolate, 10–30≈5–10 mm, rounded to obtuse, base cuneate, densely pubescent on both sides. Flowers pinkish to yellowish, in lateral racemes 1.5–8 cm long, rachis pubescent; bracts ovate-acuminate, 1.2–1.5 mm long, pubescent, persistent; bracteoles ovate-acuminate, 1–1.3 mm long, pubescent, persistent; pedicels 4–6 mm, pubescent. Posterior sepal keel-shaped, 3.5–4 mm≈2.5 mm, pubescent; wing sepals suborbicular to obovate-orbicular, 8–10≈7–8 mm, conspicuously and densely reticulate, pubescent; anterior sepals keel-shaped, 3.5≈2.5 mm, pubescent, free. Upper petals obliquely oblanceolate, 5.5–6≈2–2.5 mm; carina 6–6.5 mm≈2.5 mm; crest 2–3 mm long, fimbriate. Stamens 8. Capsule broadly oblong-elliptic in outline, 6–7.5≈4.5–5.5 mm, emarginate, very narrowly winged (wing 0.1 mm wide), densely pubescent. Seeds ovoid-ellipsoid, 4–4.5≈1.5–2 mm, white-sericeous; caruncle asymmetric, with three appendages, two humped at the apex of the seed and extending almost to the base of the seed, the other one short too (0.5–1.5 mm long). Fig. 5: 2, p. 11.
