Peltigera rufescens (Weiss) Humb.

Syn.: Lichen caninus L. var. rufescens Weiss, Lichen rufescens (Weiss) Neck., Peltidea ulorrhiza Flörke, Peltigera canina (L.) Willd. var. crispa Kickx, Peltigera canina (L.) Willd. var. rufescens (Weiss) Mudd
Lichenised.
Substrate: calciferous soil, , calciferous rocks
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the nival belt (above the lower limit of perennial snow and glaciers)
Note: a widespread holarctic lichen, most common in dry grasslands, especially in upland areas, but also in the Mediterranean belt, where it is generally rare due to intensive grazing and trampling; widespread and common throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Bern; Glarus; Graubünden; Luzern; Schwyz; Ticino; Uri; Unterwalden; Vaud; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Drôme; Isère; Savoie; Haute-Savoie; Vaucluse; Var; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Liguria; Slovenia: Alpine and Pre-Alpine Slovenia; Liechtenstein