Regions EU Europa CH Switzerland N-J Jura Mountains, North W-J Jura Mountains, West NO-CH North-eastern Switzerland W-M Central Plateau, West O-M Central Plateau, East W-NA Northern Pre-Alps, West O-NA Northern Pre-Alps, East W-Z Central Alps, West O-Z Central Alps, East S-A Southern Alps

Red List categories, Landolt (1991) Ex extinct E critically endangered V vulnerable, endangered R rare A attractive U not endangered (Ex) extinct, though hardly ever naturalized (R) rare, though unstable or recently introduced r the species is endangered because of its limited occurrence in only one mapping area nationwide + increased level (e.g. E+) - decreased level (e.g. E-) * new for Swiss Red List (e.g. A*) _ not present or no indications