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Kaliwatan sa tanom nga balili ang Rhynchospora filiformis.^[1] Una ning gihulagway ni Vahl.^[2] Ang Rhynchospora filiformis sakop sa kahenera nga Rhynchospora, ug kabanay nga Cyperaceae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Trinidad ug Tobago
• Surinam
• amihanan-sidlakang & amihanang & habagatan-sidlakang & kasadpan-sentrong Brasil
• Venezuela
• Costa Rica
• Nicaragua
• Cuba
• Ondoras
• Dominikanhong Republika
• habagatan-sidlakang Mehiko
• Puerto Rico
• Leeward Islands
• Bolibiya
• Guyana
• Guyane
• Colombia
• Belize
• Guatemala

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: 43201133. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Vahl (1805) , In: Enum. Pl. Obs. 2: 232
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.