annual ryegrass References annual ryegrass plant species Ask Anything Homework Help Also known as: Lolium multiflorum Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: ryegrass…perennial ryegrass (Lolium perenne) and annual ryegrass (L. multiflorum) are important constituents of pasture and lawn-seed mixtures used around the world. The plants are unrelated to cereal rye (Secale cereale). Read More…perennial ryegrass (Lolium perenne) and annual ryegrass (L. multiflorum) are important constituents of pasture and lawn-seed mixtures used around the world. The plants are unrelated to cereal rye (Secale cereale). Read More