This name is a synonym of Poa howellii Vasey & Scribn..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 435391) with original publication details: Contr. W. Bot. 14: 15 1912.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:204121-2.
This name was in version 1 of The Plant List, record kew-435391.