This name is a synonym of Carex echinata subsp. phyllomanica (W.Boott) Reznicek.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 330796) with original publication details: Provancheria 25: 102 1992.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1180788-2.
This name was in version 1 of The Plant List, record kew-330796, and has not been changed.