Perennial, small, caespitose, herb; rootstock covered with withered leaf bases and leaves; shoots 0-1 (-3)-leaved, up to 5(-8) cm long, erect or suberect. Radical leaves rosulate, lanceolate or elliptic, very variable, (5-) 10-20 mm long, 1-2(-5) mm broad, acute, entire or 1-2-dentate towards the apex; cauline leaves oblong-ovate or narrowly lanceolate, entire or 2-4-dentate; all leaves ± hairy with simple or furcate hairs, rarely subglabrous. Racemes 4-8 (-15)-flowered, corymbose, usually compact in fruit. Flowers c. 2.5 mm across, white; pedicel up to 3 (-5) mm long in fruit, spreading. Sepals c. 1 mm long. Petals c. 2 mm long, 1 mm broad, apex subemarginate. Stamens c. 1 : 1.5 mm long. Siliculae 3-4 (-5) mm long, 1.5-2 mm broad, ovate-oblong, or oblong-elliptic, acute, usually glabrous, rarely very sparsely hairy on the margins with short, simple hairs, base ± rounded; style c. 0.5 mm long with short, depressed stigma; septum not veined; seeds 4-6 in each locule, c. 0.7 mm long, ovoid, brown.

Fl. Per.: June-Aug.

Type: Eastern Altai, alpine zone, Bunge (LE).

Distribution: C. Asia, Himalayas, Pakistan and Afghanistan.

A very variable species with regards to its leaves, hairiness and siliculae, but white flowers and ± compact infructescence are distinctive. Infra specific taxa based on habit and indumentum are very doubtful.