For the first time, a verified point map is made of the area of Iris aphylla L. s.l. - a species of pan-European level of protection. The materials of our own field research (77 sites), herbarium data (1122 sheets in 22 Herbaria), scientific publications (studied some 270 articles, monographs), additional communications of specialists from regions (98 points), critically analyzed databases (GBIF) were used. The map shows the locations of 1260 species sites, including 224 historical (data earlier 1968) and 1036 actual data (1969-2018). The main part of the area begins in the east of Slovakia, Hungary, south-east of Poland, in the west of Romania, extending to the left side of the Volga River. The northern border of the area extends from the Lublin Upland in Poland further across Lviv, Ternopil, Khmelnitsky, Zhytomyr, Kiev, Chernigov, Sumy regions of Ukraine, further in Russia across Bryansk, Orel, Tula, the southern part of Moscow and Ryazan regions, the Republic of Mordovia, the south-eastern part of Nizhny Novgorod region, the south of the Chuvash Republic and the Republic of Tatarstan. The eastern border goes along the east of Ulyanovsk region, the west of Samara, Saratov and Volgograd regions, the southern limit of the distribution goes along the southern border of Voronezh and Belgorod regions, passing to Kharkiv region of Ukraine and further across Poltava, Kirovograd, Mykolayiv, Odessa regions of Ukraine, passing to the south of Moldova and Romania. There are updates in the map of the species in Atlas of H. Meisel (Meusel et al., 1965): the continuous area of I. aphylla begins not in the right side of the Dniester River in Moldova but in the west of Romania, the east of Slovakia and Hungary and south-east of Poland. It includes the south-east of Bryansk region, the entire Orel region of Russia, does not reach the Meshcherskaya lowland in Ryazan region, the Volga River in Nizhny Novgorod region, is absent in the largest part of the Chuvash Republic, does not reach the mouth of the Kama River in the Republic of Tatarstan, does not reach Volgograd and Rostov-on-Don. Three separate fragments of the area are in the Caucasus: the western part is in the south of Stavropol and Krasnodar Krai and Adygea, Ingushetia, North Ossetia, Kabardino-Balkaria, Karachaevo-Cherkessia, coming to the northern Georgia; the eastern part is located in Dagestan; the southern part - in West Armenia. New isolated sites are found in Germany, in the north-east of Poland, in the south of the Belarus Republic, in the south-east of Ukraine, in Kaluga, Moscow, Orenburg regions of Russia, and in the south-east of Armenia. The species is absent in Italy and Turkey.