This name is a synonym of Allium geyeri S.Watson.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 295612) with original publication details: Amer. J. Bot. 21: 573 1934.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:8772-2.
This name was in version 1 of The Plant List, record kew-295612.