Festuca durissima is a species of grass.
Synonyms Festuca duriuscula subsp. durissima (Hack.) K.Richt. Festuca duriuscula var. durissima (Hack.) A.G. Richt. Festuca indigesta subsp. durissima (Hack.) O.Bolòs, Vigo, Masalles & Ninot Festuca ovina subsp. durissima (Hack.) O.Bolòs & Vigo Festuca ovina f. villiflora Litard. Festuca ruscinonensis Rivas Mart. & Fuente Festuca yvesii Sennen & Pau
References The Plant List entry JSTOR entry Encyclopedia of Life entry