This name is a synonym of Arundinaria gigantea subsp. tecta (Walter) McClure.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 396289) with original publication details: Descr. Gram. 191 1817.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:390563-1.
This name was in version 1 of The Plant List, record kew-396289, and has not been changed.