Perennial herb sending up annual shoots up to 15 cm long from a woody rootstock and forming tufts. Stems erect or decumbent, slender, striate, glabrous. Leaves alternate, subsessile, linear, 5–20≈0.5–1 mm, acute, with a needle-like point, base cuneate, margin revolute, glabrous. Flowers blue, solitary or in a lateral simple few-flowered raceme, up to 1.5 cm long; rachis glabrous; bracts linear, 0.5 mm long, caducous; bracteoles linear, ± 0.2 mm long, caducous; pedicels 5–9 mm, glabrous. Posterior sepal keel-shaped, 2.2≈1.5 mm, ciliolate; wing sepals obliquely elliptic, 4.5–5≈2.5–3 mm, acute, 3–5-veined from the base, ciliolate; anterior sepals keel-shaped, 1.7–2≈1.5 mm, ciliolate, connate. Upper petals obliquely obovate, 4–4.5≈3–3.5 mm; carina 5–5.2≈2.5–2.8 mm; crest 1.5 mm long, bilobed. Stamens 6 fertile with 2 staminodes. Capsule oblong-elliptic in outline, 2.5–3≈2–2.5 mm, narrowly winged, glabrous. Seeds ellipsoid, 2–2.2≈0.7–1 mm, with white-sericeous hairs; caruncle asymmetrically kidney-shaped, 0.7 mm long, hairy, appendages scarcely developed.
