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Lolium perenne, common name perennial ryegrass, [1] English ryegrass, winter ryegrass, or ray grass, is a grass from the family Poaceae. It is native to Europe, Asia and northern Africa, but is widely cultivated and naturalised around the world. Lolium perenne, showing ligule and ribbed leaf
Lolium multiflorum (Italian rye-grass, [2] annual ryegrass) is a ryegrass native to temperate Europe, though its precise native range is unknown. [3] It is a herbaceous annual, biennial, or perennial grass that is grown for silage, and as a cover crop. [4] [5] It is also grown as an ornamental grass.
The primary species found worldwide and used both for lawns and as a forage crop is perennial ryegrass (Lolium perenne). Like many cool-season grasses of the Poaceae, it harbors a symbiotic fungal endophyte, either Epichloë or its close relative Neotyphodium, both of which are members of the fungal family Clavicipitaceae. [10] [11]
This perennial weed is easily recognized by its bright yellow flowers and serrated leaves. Its deep taproot makes it challenging to eradicate completely from lawns and gardens. Bernard Lynch
Ornamental grasses, such as perennial bunch grasses, are used in many styles of garden design for their foliage, inflorescences and seed heads. They are often used in natural landscaping , xeriscaping and slope and beach stabilization in contemporary landscaping, wildlife gardening , and native plant gardening .
Annual ryegrass is a common name for several species of ryegrass and may refer to: Lolium multiflorum , known as "annual ryegrass" in the United States, Canada and the United Kingdom and grown as a cover crop
Elymus is a genus of perennial plants with approximately 150 species [5] in the grass family, related to rye, wheat, and other widely grown cereal grains. [6] Elymus is a cosmopolitan genus, represented by species across all continents of the world. [7] Common names include couch grass, wildrye and wheatgrass. [8] [9] [10] [11]
Leymus cinereus is a perennial bunchgrass forming large, tough clumps up to about 2 metres (6 + 1 ⁄ 2 feet) tall [4] and sometimes exceeding 1 m (3 + 1 ⁄ 2 ft) in diameter. It has a large, fibrous root system and sometimes small rhizomes.