A Eurasian grass which is a valuable fodder and lawn grass.
- Genus Lolium, family Gramineae: several species, in particular L. perenne
- Perennial ryegrass is a bunch grass suitable for hay, silage, or pasture.
- In this region, cool-season grasses such as fine fescue, Kentucky bluegrass and turf-type perennial ryegrass thrive.
- Tall fescue and perennial ryegrass are more resistant than bluegrass and Bermuda.
Early 18th century: alteration of obsolete ray-grass, of unknown origin.
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