Noccaea caerulescens

Biennial or perennial herb.

15–40 cm high.

The stem is typically simple, terete and scarcely foliate (occasionally many-leaved).

The basal leaves are arranged in a rosette, and the cauline leaves are arranged spirally. The rosette leaves are petiolate. The cauline leaves are amplexicaul, elliptic – lanceolate – obovate, nearly entire, glabrous and blue-green.

The inflorescence is an ebracteate dense raceme. The flowers are bisexual with four sepals and petals. The petals are 1–4 mm long and white. There are six stamens, of which four are long and two are short. The anthers are often dark purple or occasionally light-colored.

The fruit is a 6–8 mm long, narrowly obovate, emarginate, alate and many-seeded silicula.