Calamagrostis sylvatica var. purpurascens (R. Brown) Thurberg ex Vasey

Calamagrostis sylvatica var. purpurascens (R. Brown) Thurberg ex Vasey is a synonym sensu TROPICOS of:

Calamagrostis purpurascens R. Brown, an accepted species name sensu FNA Ed. Comm., 2007.