Rottboellia (commonly called itch grass) is a genus of African, Asian, and Australian plants in the grass family. The genus was named in honour of Danish botanist Christen Friis Rottbøll (1727-1797). Numerous species now considered better suited to other genera: Chasmopodium, Coelorachis, Elionurus, Eremochloa, Festuca, Glyphochloa, Hainardia, Hemarthria, Henrardia, Heteropholis, Ischaemum, Lasiurus, Lolium, Loxodera, Manisuris, Mnesithea, Muhlenbergia, Ophiuros, Oropetium, Parapholis, Phacelurus, Pholiurus, Ratzeburgia, Rhytachne, Schizachyrium, Spartina, Stenotaphrum, Thaumastochloa, Urelytrum and Xerochloa.