A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium, Burke Museum
Hosted by the University of Washington Herbarium, Burke Museum
Lolium perenne L.[FNA24, HC, HC2]
English ryegrass, perennial ryegrass
Publication: Sp. Pl. 1: 83. 1753.
Origin: Introduced from Europe
Herbarium search: CPNWH
Notes: FNA24: "Lolium perenne, a Eurasian species, is now established in disturbed areas throughout much of the Flora region. It is commercially important, being included in lawn seed mixtures as well as being used for forage and erosion prevention.
Lolium perenne intergrades and is interfertile with L. multiflorum; it also intergrades with L. rigidum. Typical L. perenne differs from L. multiflorum in being a shorter, longer-lived perennial with narrower leaves that are folded, rather than rolled, in the bud. Hybrids between the two species are called Lolium ×hybridum Hausskn."
Last updated 12/23/2023 by David Giblin.
Synonyms & Misapplied Names:
Lolium multiflorum Lam. var. ramosum Guss. ex Arcang.
Lolium perenne L. var. cristatum Pers.
