Atlas of North European vascular plants
Hultén & Fries 1986
709 Arenaria procera Spreng.
Within this Eurasiatic species at least two subspecies are distinguished, viz. subsp. procera, mainly in E. Europe and W. and C. Asia, and subsp. glabra (F. N. Will.) Holub including a special type, here recorded as subsp. polaris (Schischkin) Hult. in NE. Russia and N. Siberia.