You selected Dendrobium tetragonum var. variabile P.A.Gilbert. This is a synonym for:

Accepted scientific name:
Dendrobium tetragonum A.Cunn. ex Lindl. (accepted name) 1 literature reference for Dendrobium tetragonum A.Cunn. ex Lindl.
Synonyms:
Callista tetragona (A.Cunn. ex Lindl.) Kuntze (synonym) 1 literature reference for Callista tetragona (A.Cunn. ex Lindl.) Kuntze
Dendrobium tetragonum var. tomentosum Nicholls (synonym) 1 literature reference for Dendrobium tetragonum var. tomentosum Nicholls
Dendrobium tetragonum var. variabile P.A.Gilbert (synonym) 1 literature reference for Dendrobium tetragonum var. variabile P.A.Gilbert
Dendrocoryne tetragonum (A.Cunn. ex Lindl.) Brieger (synonym) 1 literature reference for Dendrocoryne tetragonum (A.Cunn. ex Lindl.) Brieger
Tetrabaculum tetragonum (A.Cunn. ex Lindl.) M.A.Clem. & D.L.Jones (synonym) 1 literature reference for Tetrabaculum tetragonum (A.Cunn. ex Lindl.) M.A.Clem. & D.L.Jones
Tropilis tetragona (A.Cunn. ex Lindl.) Butzin (synonym) 1 literature reference for Tropilis tetragona (A.Cunn. ex Lindl.) Butzin
Infraspecific taxon: Dendrobium tetragonum var. cacatua (M.A.Clem. & D.L.Jones) H.Mohr
Dendrobium tetragonum var. giganteum P.A.Gilbert
Dendrobium tetragonum var. melaleucaphilum (M.A.Clem. & D.L.Jones) Dockrill
Dendrobium tetragonum var. tetragonum
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Asparagales
Family Orchidaceae
Genus Dendrobium
Distribution: E. Australia
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=59272&repSynonym_id=-9998&name_id=59272&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:f0e40fe6-29c1-102b-9a4a-00304854f820:ac2010