Perennial grassy swards on coastal shingle beaches of the subarctic and arctic coasts of Northern Europe, the Arctic Ocean archipelagos and Greenland
Mertensio maritimae-Honckenyion diffusae Tx. et Géhu in Géhu 1998
Mertensio maritimae-Honckenyion diffusae Tx. et Géhu in Géhu 1998