Arabis hirsuta, known as hairy rock-cress,[4] is a flowering plant in the family Brassicaceae.

In previous North American works, this species has been broadly defined to include plants native to Europe, Asia, and the northern half of North America,[5] but is now more often restricted to a narrower subgroup restricted to Europe.

[6][7][8] Arabis hirsuta grows to heights of up to around 75 centimetres (30 in)[9] and is usually unbranched, with a long spike of flowers.

The fruits are cylindrical and pressed close to the stem and the slightly winged seeds are reddish brown.

The species grows on chalk slopes, dunes, hedgebanks, walls and rocks.