Hart's-tongue fern (Asplenium scolopendrium), Leptosporangiate ferns (Polypodiopsida), striped ferns (Aspleniaceae), Finstertal, gorge forest, Beuron, Upper Danube nature park Park, Baden-Wuerttemberg, Germany, Europe

aspleniaceae asplenium scolopendrium asplenium baden wurttemberg baden wuerttemberg beuron botany canyon forest canyons canyon central europe deserted empty europe ferns fern filicopsida german federal republic germany hart's tongue ferns hart's tongue fern leptosporangiate ferns leptosporangiate fern middle europe natural preserves natural preserve nature reserves nature reserve nature nobody no one no people phyllitis scolopendrium plants plant polypodiopsida protected area reserves reserve rocks rocky rock sanctury schwaebische alb southern germany south germany spleenworts spleenwort swabian alps swabian jura sueddeutschland tracheophyta true fern uninhabited upper danube nature park