Annual Ryegrass, Italian Ryegrass: Lolium multiflorum (Synonyms: Lolium multiflorum ssp. italicum, Lolium multiflorum var. diminutum, Lolium multiflorum var. muticum, Lolium perenne ssp. italicum, Lolium perenne ssp. multiflorum, Lolium perenne var. aristatum, Lolium perenne var. multiflorum) -
English Ryegrass, Perennial Ryegrass: Lolium perenne (Synonyms: Lolium multiflorum var. ramosum, Lolium perenne var. cristatum, Lolium perenne ssp. perenne) -
Meadow Fescue, Meadow Ryegrass: Lolium pratense (Synonyms: Festuca elatior, Festuca pratensis) -
Darnel, Darnel Ryegrass: Lolium temulentum var. arvense (Synonym: Lolium temulentum var. arvense) -