Syn.: Chamaefilix ruta-muraria (L.) Farw., Phyllitis ruta-muraria (L.) Moench
Family: Aspleniaceae Mett.
Distribution: Europe, Northern Africa, temperate Asia and Northern America.
Ecology: It grows in rock fissures and on old walls, almost always on limestene, from lowlands to mountains.
Description: A perennial fern with a creeping, scaly rhizome and evergreen leaves, 5–15(–20) cm high, the leaves are bipinnate, dark green, pinnules obovate to lanceolate with crenate or dentate margins, sori ripen from May to October.
These images were taken in Czechia, Brno (October 18, 2003).
