Linum perenne is accepted species in  the family Linaceae  subfamily: Linoideae,  
Genus Linum 
This species is found in Altay, Austria, Belarus, Buryatiya, Central European Rus, China North-Central, China South-Central, Czechoslovakia, East European Russia, Germany, Hungary, Inner Mongolia, Irkutsk, Kazakhstan, Krasnoyarsk, Mongolia, Poland, Qinghai, Tibet, Tuva, Ukraine, West Himalaya, West Siberia, Xinjiang, Yakutskiya.