Family: Aspleniaceae Mett.
Asplenium ruta-muraria
Distribution: Europe, Northern Africa, temperate Asia and Northern America.
Habitat: 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.
Asplenium ruta-murariaAsplenium ruta-muraria
Asplenium ruta-muraria
These images were taken in Czechia, Brno (date: 18. 10. 2003).