You selected Cyperus distans forma pachyanthos Kük. This is a synonym for:

Accepted scientific name:
Cyperus distans L.f. (accepted name) 1 literature reference for Cyperus distans L.f.
Synonyms:
Cyperus densiflorus Hemsl., nom. illeg. (synonym) 1 literature reference for Cyperus densiflorus Hemsl., nom. illeg.
Cyperus distans forma capillarioides Kük. (synonym) 1 literature reference for Cyperus distans forma capillarioides Kük.
Cyperus distans var. crassispiculosus Gross & Kük. (synonym) 1 literature reference for Cyperus distans var. crassispiculosus Gross & Kük.
Cyperus distans var. densiflorus Kük. (synonym) 1 literature reference for Cyperus distans var. densiflorus Kük.
Cyperus distans forma pachyanthos Kük. (synonym) 1 literature reference for Cyperus distans forma pachyanthos Kük.
Cyperus distans forma pallidior Kük. (synonym) 1 literature reference for Cyperus distans forma pallidior Kük.
Cyperus distans var. pseudonutans Kük. (synonym) 1 literature reference for Cyperus distans var. pseudonutans Kük.
Cyperus elatus Rottb., nom. illeg. (synonym) 1 literature reference for Cyperus elatus Rottb., nom. illeg.
Cyperus graminicolus Steud. (synonym) 1 literature reference for Cyperus graminicolus Steud.
Cyperus kurrii Steud. (synonym) 1 literature reference for Cyperus kurrii Steud.
Cyperus laxus Vahl, nom. illeg. (synonym) 1 literature reference for Cyperus laxus Vahl, nom. illeg.
Cyperus nutans Sieber ex C.Presl, nom. illeg. (synonym) 1 literature reference for Cyperus nutans Sieber ex C.Presl, nom. illeg.
Cyperus psilostachys Steud. (synonym) 1 literature reference for Cyperus psilostachys Steud.
Cyperus purpureovaginatus Boeckeler (synonym) 1 literature reference for Cyperus purpureovaginatus Boeckeler
Cyperus schraderianus Mart. ex Steud. (synonym) 1 literature reference for Cyperus schraderianus Mart. ex Steud.
Cyperus squamulatus Steud. (synonym) 1 literature reference for Cyperus squamulatus Steud.
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Poales
Family Cyperaceae
Genus Cyperus
Distribution: Trop. & Subtrop.
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=236393&repSynonym_id=-9998&name_id=236393&status=true
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:260497d6-60a7-102d-be47-00304854f810:ac2010