Synonyms
Calamagrostis lepageana Louis-Marie
Calamagrostis wiluica Litv. ex Petrov
Trisetum williamsii Louis-Marie
Calamagrostis czekanowskiana Litv.
Calamagrostis sylvatica var. purpurascens Thurb. ex Vasey
Calamagrostis yukonensis Nash
Calamagrostis sylvatica var. americana Vasey
Trisetum bongardii Louis-Marie
Deschampsia congestiformis W.E.Booth
Calamagrostis maltei (Polunin) Á.Löve & D.Löve
Calamagrostis purpurascens var. maltei Polunin
Calamagrostis arctica Vasey
Calamagrostis purpurascens subsp. maltei (Polunin) A.E.Porsild
Calamagrostis purpurascens var. arctica (Vasey) Kearney
Calamagrostis purpurascens subsp. arctica (Vasey) Hultén