Annual, 15-40 cm tall, simple or sparsely branched, mostly from the base, suberect or ascending, sparsely hairy with minute or short branched or simple hairs, especially below, glabrous or subglabrous above. Basal leaves laxly rosulate, lyrate pinnatipartite or obovate, 1-2 jugate, 20-50 mm long, 10-20 mm broad; terminal lobe large, obovate-orbicular to suborbicular, very sparsely denticulate; laterals lobes minute or very small, ± triangular; cauline leaves 0-few, often only 1, distant, oblanceolate or oblong-obovate, 10-25 mm long, 4-10 mm broad, acute, distantly toothed, rarely entire; all leaves thin, submembranous, sparsely hairy to glabrous, lower petioled, upper subsessile or very shortly petioled. Racemes 10-20-flowered, ebracteate, lax, up to 25 cm long in fruit. Flowers c. 5 mm across, white; pedicels 12-25 mm long in fruit, fitliform, glabrous, ascending or upcurved. Sepals c. 2.5 mm long. Petals 5-6 mm long, 1.5-2 mm broad. Stamens c. 2: 3 mm long; anthers c. 1 mm long. Siliquae linear, erect, 40-60 mm long, 1 mm broad, glabrous; valves subconvex or flattened with a distinct mid-vein; style c. 1 mm long with a minute, depressed stigma; septum hyaline, not veined; seeds 20-25 in each locule, c. 1 mm long, ellipsoid, brown.
Fl. Per.: April-June.
Type: Kashmir, Duthie 11055 (K, B).
Distribution: Kashmir and Pakistan.
It looks more like an Arabidopsis than the following type species of Microsisymbrium.
