Elytrigia juncea subsp. boreoatlantica - © Barry Stewart
Elytrigia juncea subsp. boreoatlantica Sand Couch
((Simonet & Guin.) Hyl.
Elytrigia juncea subsp. boreoatlantica is referred to Elymus junceiformis in New Flora of the British Isles (4th Edition) and the BSBI Atlas. See the description of this species and taxonomic explanations here in the account of Elymus junceiformis.
