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 and as an illegitimate name (record 295040) with original publication details: Bull. Torrey Bot. Club 27: 506 1900.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:297325-2.
This name was in version 1 of The Plant List, record kew-295040, and has not been changed.