Cerastium nigrescens subsp. arcticum (Lange) P. S. Lusby in Watsonia 16: 296. 1987
Cerastium nigrescens subsp. arcticum in Watsonia 16: 296. 1987
is new combination for Cerastium arcticum in Oeder, Fl. Dan. 50: 7. 1880
Cerastium nigrescens subsp. arcticum in Watsonia 16: 296. 1987