This name is a synonym of Carex capitata Sol..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 9900142) with original publication details: Meddel. Grønland 147(9): 54 1952.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:60449071-2.
This name was in version 1 of The Plant List, record tro-9900142.