This name is a synonym of Allium geyeri var. tenerum M.E.Jones.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 309921) with original publication details: Bull. Torrey Bot. Club 27: 538 1900.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:8870-2.
This name was in version 1 of The Plant List, record kew-309921, and has not been changed.