Moehringia villosa

Moehringia villosa is endemic to Slovenia, with a restricted distribution in the southern Julian Alps and their foothills. Its known distribution area spans from its easternmost locality under Mt. Hoč above the village of Podporezen (Železniki municipality), to its northeasternmost locality under Skopska Crna Gora in the area of Home (Bohinj municipality). The southernmost populations occur at Hudičev rob under Mt. Kojca (Cerkno municipality), while the northwesternmost locality—which represents the extreme northwestern boundary of the species' entire global range—is at Curk waterfall under Mt. Krn (Kobarid municipality). The majority of known localities are situated in the upper Bača valley in the Tolmin municipality. The species inhabits crevices in limestone, dolomite, marlstone, and chert rocks. It typically grows on steep to vertical rock faces with slopes of 80–100 degrees, at elevations ranging from approximately 445 to 1,475 metres above sea level. These rock faces vary in aspect, though many localities have southern, southeastern, or eastern exposures. Phytosociologically, M. villosa primarily occurs in the plant community Campanulo carnicae–Moehringietum villosae, often associated with other specialized rock-dwelling plants including Campanula carnica, Paederota lutea, Asplenium trichomanes, and Sesleria caerulea. …