You selected Erythronium grandiflorum subsp. candidum Piper. This is a synonym for:

Accepted scientific name:
Erythronium idahoense H.St.John & G.N.Jones (accepted name) 1 literature reference for Erythronium idahoense H.St.John & G.N.Jones
Synonyms:
Erythronium grandiflorum var. candidum (Piper) Abrams (synonym) 1 literature reference for Erythronium grandiflorum var. candidum (Piper) Abrams
Erythronium grandiflorum subsp. candidum Piper (synonym) 1 literature reference for Erythronium grandiflorum subsp. candidum Piper
Erythronium idahoense forma tricolor H.St.John (synonym) 1 literature reference for Erythronium idahoense forma tricolor H.St.John
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Liliales
Family Liliaceae
Genus Erythronium
Distribution: NW. U.S.A.
Additional data: -
Source database: World Checklist of Selected Plant Families, 27 Nov 2009
Latest taxonomic scrutiny: Govaerts R., 06-Jan-2005
Online resource: http://apps.kew.org/wcsp/namedetail.do?accepted_id=305777&repSynonym_id=-9998&name_id=305777&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:2635f88a-60a7-102d-be47-00304854f810:ac2010