Goivo da rocha, cravo de burro (Matthiola maderensis)

Biennial or perennial plant, to 1 m, woody at base, erect and rather branched. Leaves are grouped at the base in a kind of rosette and around the stems, where they are smaller than the basal leaves. Leaves are lanceolate, pointed and generally entire, 5-25 cm long and 0.75 cm wide. Flowers are violet or pink, less frequently white; fruits are almost cylindrical and long, up to 150 mm. A native of Madeira, Porto Santo and the Desertas Islands, this halophytic and xerophytic plant grows mainly between sea level and 100 m, although it ascends to 200-300 m, and sometimes more, on coastal cliffs and certain mountains. Locally abundant and widely distributed throughout the islands, it is not endangered.