Evergreen leaves, from 5 to 15 cm long

Thick blade, green upper side, under side covered with scales, at first white, then brown

During drought, rolls up showing the scales; revives after a rain

Growth in early spring, fructification in spring and summer, evergreen leaves

Limestone rock crevices, sunny rock walls

Not common on the Vercors plateau : above Choranche village, around St Julien en Vercors (930 m)