Kaliwatan sa balili ang Paspalum rufum.^[1] Una ning gihulagway ni Christian Gottfried Daniel Nees von Esenbeck ug Ernst Gottlieb von Steudel.^[2] Ang Paspalum rufum sakop sa kahenera nga Paspalum, ug kabanay nga balili.^[1][3]

Kini nga matang hayop na sabwag sa:

• Paraguay
• habagatang Brasil
• amihanan-sidlakang & amihanan-kasadpang Argentina
• Uruguay

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: 43343176. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Nees ex Steud. (1853) , In: Syn. Pl. Glumac. 1: 26
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.