You selected Cladium tetraquetrum Hook.f. This is a synonym for:

Accepted scientific name:
Machaerina tetragona (Labill.) T.Koyama (accepted name) 1 literature reference for Machaerina tetragona (Labill.) T.Koyama
Synonyms:
Baumea tetragona (Labill.) S.T.Blake (synonym) 1 literature reference for Baumea tetragona (Labill.) S.T.Blake
Cladium teretifolium var. asperrimum Kük. (synonym) 1 literature reference for Cladium teretifolium var. asperrimum Kük.
Cladium teretifolium var. tetraquetrum (Hook.f.) Domin (synonym) 1 literature reference for Cladium teretifolium var. tetraquetrum (Hook.f.) Domin
Cladium tetragonum (Labill.) J.M.Black (synonym) 1 literature reference for Cladium tetragonum (Labill.) J.M.Black
Cladium tetraquetrum Hook.f. (synonym) 1 literature reference for Cladium tetraquetrum Hook.f.
Lepidosperma tetragonum Labill. (synonym) 1 literature reference for Lepidosperma tetragonum Labill.
Mariscus tetraquetrus (Hook.f.) Kuntze (synonym) 1 literature reference for Mariscus tetraquetrus (Hook.f.) Kuntze
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Poales
Family Cyperaceae
Genus Machaerina
Distribution: SE. Queensland to SE. Australia
Additional data: -
Source database: World Checklist of Selected Plant Families, 27 Nov 2009
Latest taxonomic scrutiny: Govaerts R., 21-Jun-2005
Online resource: http://apps.kew.org/wcsp/namedetail.do?accepted_id=252845&repSynonym_id=-9998&name_id=252845&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:f19d4100-29c1-102b-9a4a-00304854f820:ac2010