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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]
An example of a sod-forming perennial grass used in agriculture is Thinopyrum intermedium. Industry Grasses are used as raw material for a multitude of purposes, including construction and in the composition of building materials such as cob , for insulation, in the manufacture of paper and board such as oriented structural straw board .
The plant form is usually erect but may be prostrate. The stems are often geniculate (with a knee-like bend) and are purplish at the base. The leaves are 5 to 25 cm (2 to 10 in) long, and 3 to 5 mm (0.12 to 0.20 in) wide; the upper surface is glossy dark green, flat and hairless with longitudinal veins, and the underside is shiny and smooth.
Miscanthus giganteus - a perennial crop with high yields and high GHG mitigation potential. Perennial sunflower - a perennial oil and seedcrop developed through backcrossing genes with wild sunflower. Perennial grain - more extensive root systems allow for more efficient water and nutrient uptake, while reducing year-round erosion due to rain ...
Annual grasslands are dominated by non-native annual grasses and forbs, with a few native perennial grass species present. These grasslands are subject to seasonal and yearly variations in species composition and productivity, which are largely controlled by the timing and amount of precipitation and temperature.
Lolium persicum is a species of flowering plant in the family Poaceae. [1] [2] [3] It is referred to by the common names Persian darnel or Persian ryegrass, and is an annual grass.