This name is a synonym of Erythronium americanum Ker Gawl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 276587) with original publication details: Rhodora 31: 36 1929.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:96807-2.
This name was in version 1 of The Plant List, record kew-276587.