Perennial herb, 0.1-0.3 m high. Stems with a mixture of simple and branched hairs, lower parts mostly simple hairs, upper parts mostly branched hairs. Leaves: basal leaves rosulate, petiolate, pinnately angular-dentate or pinnatisect, 4-11-jugate, lobes oblong or obovate, angular-dentate or crispate; cauline leaves similar, gradually smaller, petioles shorter, upper ones sessile or subsessile, fewer and narrower lobes; all leaves hairy. Inflorescence a terminal raceme; rachis hairy. Sepals outer cucullate, hairy or glabrous. Petals linear-oblong or oblong, claw membranous. Fruit a linear siliqua, terete, glabrous or scabrid. Seeds oblong, brown.
Perennial herb, 10-30(-70) mm tall, stems covered with simple and branched hairs. Leaves in a basal rosette, often shed at flowering, pinnatisect, with 4-11 pairs of lobes, upper ones fewer-lobed, all hairy. Flowers small, yellow. Fruit linear, terete, 20-45 x 0.8-1.4 mm.