You selected Euphorbia pediculifera var. involuta (Millsp.) I.M.Johnst. This is a synonym for:

Accepted scientific name:
Euphorbia pediculifera Engelm. (accepted name) 1 literature reference for Euphorbia pediculifera Engelm.
Synonyms:
Chamaesyce conjuncta (Millsp.) Millsp. (synonym) 1 literature reference for Chamaesyce conjuncta (Millsp.) Millsp.
Chamaesyce involuta (Millsp.) Millsp. (synonym) 1 literature reference for Chamaesyce involuta (Millsp.) Millsp.
Chamaesyce pediculifera (Engelm.) Rose & Standl. (synonym) 1 literature reference for Chamaesyce pediculifera (Engelm.) Rose & Standl.
Chamaesyce saltonensis Millsp. (synonym) 1 literature reference for Chamaesyce saltonensis Millsp.
Euphorbia conjuncta Millsp. (synonym) 1 literature reference for Euphorbia conjuncta Millsp.
Euphorbia involuta Millsp. (synonym) 1 literature reference for Euphorbia involuta Millsp.
Euphorbia pediculifera var. inornata Brandegee (synonym) 1 literature reference for Euphorbia pediculifera var. inornata Brandegee
Euphorbia pediculifera var. involuta (Millsp.) I.M.Johnst. (synonym) 1 literature reference for Euphorbia pediculifera var. involuta (Millsp.) I.M.Johnst.
Euphorbia pediculifera var. linearifolia S.Watson (synonym) 1 literature reference for Euphorbia pediculifera var. linearifolia S.Watson
Euphorbia pediculifera var. minor Millsp. (synonym) 1 literature reference for Euphorbia pediculifera var. minor Millsp.
Euphorbia pediculifera var. typica L.C.Wheeler (synonym) 1 literature reference for Euphorbia pediculifera var. typica L.C.Wheeler
Euphorbia vermiformis M.E.Jones (synonym) 1 literature reference for Euphorbia vermiformis M.E.Jones
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Malpighiales
Family Euphorbiaceae
Genus Euphorbia
Distribution: SW. U.S.A. to NW. Mexico
Additional data: -
Source database: World Checklist of Selected Plant Families, 27 Nov 2009
Latest taxonomic scrutiny: Govaerts R., 11-Nov-2003
Online resource: http://apps.kew.org/wcsp/namedetail.do?accepted_id=81374&repSynonym_id=-9998&name_id=81374&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:28016d66-60a7-102d-be47-00304854f810:ac2010