About Arabis hirsuta (L.) Scop.
Arabis hirsuta, commonly called hairy rock-cress, is a flowering plant that belongs to the Brassicaceae family. Earlier North American botanical works broadly defined this species to include plants native to Europe, Asia, and the northern half of North America, but modern classifications more often restrict the definition of Arabis hirsuta to a narrower group found only in Europe. This species can grow up to approximately 75 centimetres, or 30 inches, tall. It is typically unbranched, and produces a long spike of flowers. Lower leaves grow in a rosette formation, while the stalkless upper leaves clasp the stem. Its flower petals are white, and twice the length of its sepals; it flowers between June and August. Its fruits are cylindrical, and grow pressed closely against the stem. Its slightly winged seeds are reddish brown. The plant is covered in stiff, forking hairs. It grows in habitats including chalk slopes, dunes, hedgebanks, walls, and rocks. As of 2021, the conservation status of Arabis hirsuta in the United Kingdom is classified as "least concern".
