Calamagrostis langsdorfii (Link) Trin., Gram. Unifl. Sesquifl.: 225. 1824
Calamagrostis langsdorfii, Gram. Unifl. Sesquifl.: 225. 1824
is new combination for Arundo langsdorfii, Enum. Hort. Berol. Alt. 1: 74. 1821
Calamagrostis langsdorfii, Gram. Unifl. Sesquifl.: 225. 1824