Perennia1, 20-60 cm tall, erect or ascending, woody below; stem leafy, angular, covered with partite appressed hairs. Leaves oblanceolate to linear, basal leaves rosulate, 50-100 mm long, shortly stalked, entire or slightly denticulate; cauline leaves crowded, smaller, subsessile. Racemes 10-30-flowered, elongated in fruits. Flowers large, c. 20 (-25) mm across, bright orange-yellow; pedicels up to 15 mm long in fruit, ascending, hardly thickened. Sepals 10-12 mm long. Petals c. twice as long as the sepals, with broad limb and long claw. Stamens c. 10: 12 (-14) mm long. Siliquae .(25-) 40-70 mm long, 3-5 mm broad, straight, compressed-terete, erect, appressedly hairy; valves with a conspicuous mid-rib; style 1-1.5 mm long, thickened with a bilobed stigma, slightly spreading above; seeds c. 3 mm long, suborbicular, slightly winged at the apex, pale brown.

Fl. Per.: March-May.

Type: Described from Europe (Britain and Switzerland).

Distribution: Native of Europe, especially Mediterranean region, widely introduced and cultivated throughout the world.

Wall-flower is often cultivated in our gardens during winter.