This name is a synonym of Acorus gramineus Aiton.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 2330) with original publication details: Guihaia 5: 179 1985.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:914789-1.
This name was in version 1 of The Plant List, record kew-2330.