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Kaliwatan sa tanom nga balili ang Cyperus erectus.^[1] Una ning gihulagway ni Heinrich Christian Friedrich Schumacher, ug gihatagan sa eksakto nga ngalan ni Johannes Mattfeld ug Georg Kükenthal.^[2] Ang Cyperus erectus sakop sa kahenera nga Cyperus, ug kabanay nga Cyperaceae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Burkina Faso
• Kotidaybor
• Province of KwaZulu-Natal
• Free State
• Saint Helena Island (pulo sa Santaylena)
• Tunga-tungang Aprikanhong Republika
• Zimbabwe
• Mozambique
• Kenya
• Etyopiya
• Tanzania
• Madagascar
• Uganda
• Guinea
• Kamerun
• Zambiya
• Sierra Leone
• Demokratikanhong Republika sa Konggo
• Congo
• amihanang Habagatang Aprika
• Eastern Cape, Western Cape, Northern Cape
• Anggola
• Senegal
• Malawi
• Chad
• Rwanda
• Eswatini
• Ghana
• Maurisyo
• Comoros
• Benin
• Togo
• Lesotho
• Liberya
• Mali
• Nigyeriya
• Gulf of Guinea Islands
• Gabon
• Gineang Ekwatoryal

Ang kaliwatan gibahinbahin ngadto sa matang nga nahiubos:^[1]

• C. e. jubensis
• C. e. erectus

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: 43177499. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ H.G.A.Engler (ed.) (1936) , In: Pflanzenr., IV, 20(101): 588
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.