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Kaliwatan sa tanom nga balili ang Cyperus richardii.^[1] Una ning gihulagway ni Ernst Gottlieb von Steudel.^[2] Ang Cyperus richardii sakop sa kahenera nga Cyperus, ug kabanay nga Cyperaceae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Andaman Islands (kapuloan sa Indiya)
• Assam (estado)
• Burkina Faso
• Hainan Sheng
• Florida
• Kotidaybor
• State of New South Wales
• State of Queensland
• Viyetnam
• Gambia
• Indya
• Tunga-tungang Aprikanhong Republika
• Mozambique
• Kenya
• Etyopiya
• Tanzania
• Uganda
• Guinea
• Kamerun
• Sierra Leone
• Demokratikanhong Republika sa Konggo
• Congo
• Burundi
• Anggola
• Thayland
• Miyanmar
• Senegal
• Malawi
• Chad
• Eritreya
• Pakistan
• Somaliya
• Sudan
• Rwanda
• Ghana
• Malaysiya
• Benin
• Togo
• habagatan-sidlakang Pangmasang Republika sa Tsina
• Sri Lanka
• Bangladesh
• Mali
• Nigyeriya
• Gulf of Guinea Islands
• Gabon
• Nepal
• sidlakang Himalayas
• Gineang Ekwatoryal

Walay nalista nga matang nga sama niini.^[1]

1. ↑ ^{1.0 1.1 1.2} Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (2019). "Species 2000 & ITIS Catalogue of Life: 2019 Annual Checklist". Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X. TaxonID: 43179228. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Steud. (1854) , In: Syn. Pl. Glumac. 2: 8
3. ↑ Govaerts R. (ed). For a full list of reviewers see: http://apps.kew.org/wcsp/compilersReviewers.do (2019). WCSP: World Checklist of Selected Plant Families (version Aug 2017). In: Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist (Roskov Y., Ower G., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., Nieukerken E. van, Zarucchi J., Penev L., eds.). Digital resource at www.catalogueoflife.org/annual-checklist/2019. Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X.