perennial ryegrass perennial-rooted • perennial salt marsh aster · · · Info · Definitions · Synonyms · Characters · · perennial ryegrass · · Text Common · · Latin · · Scripts 18 · · Length 6 · · Syllables Definitions · · · (noun) European perennial grass widely cultivated for pasture and hay and as a lawn grass. Synonyms: perennial ryegrass, English ryegrass, Lolium perenne. · · Noun Definition 1 Synonyms · · · english ryegrass · · Synonym 1 lolium perenne · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 y latin small letter y U+0079