⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-402923, with some changes.

Calamagrostis langsdorffii var. marylandica Trin. is a synonym of Calamagrostis canadensis (Michx.) P.Beauv.

This name is a synonym of Calamagrostis canadensis (Michx.) P.Beauv..

The record derives from WCSP which reports it as a synonym (record 402923) with original publication details: Gram. Unifl. Sesquifl. 225 1824.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:40475-2.