Patosia is a monotypic genus of flowering plants in the family Juncaceae. It was described as a genus in 1890.Buchenau, Franz Georg Philipp. 1890. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 12: 63-65 description in Latin, commentary in GermanTropicos, Patosia Buchenau

The genus contains only one known species, Patosia clandestina, native to southern South America (Chile, Argentina and Bolivia).Kew World Checklist of Selected Plant FamiliesKirschner, J. & al. (2002). Juncaceae. Species Plantarum: Flora of the World 6-8: 1-237, 1-336,1-192. Australian Biological Resources Study, Canberra.

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