You selected Erythronium grandiflorum var. smithii Hook. This is a synonym for:

Accepted scientific name:
Erythronium revolutum Sm. (accepted name) 1 literature reference for Erythronium revolutum Sm.
Synonyms:
Erythronium grandiflorum var. smithii Hook. (synonym) 1 literature reference for Erythronium grandiflorum var. smithii Hook.
Erythronium johnsonii Bol. (synonym) 1 literature reference for Erythronium johnsonii Bol.
Erythronium revolutum var. johnsonii (Bol.) Purdy (synonym) 1 literature reference for Erythronium revolutum var. johnsonii (Bol.) Purdy
Erythronium smithii Orcutt (synonym) 1 literature reference for Erythronium smithii Orcutt
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Liliales
Family Liliaceae
Genus Erythronium
Distribution: SW. British Columbia to NW. California
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=305808&repSynonym_id=-9998&name_id=305808&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:26360988-60a7-102d-be47-00304854f810:ac2010