''Lolium persicum'' is a species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of ...

in the family Poaceae. It is referred to by the common names Persian darnel or Persian ryegrass, and is an annual

grass Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in law ...

. It has an upright stem, branching from a reddish base, up to 45 cm tall. Its leaves are lower surface glossy, dark

green Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 Nanometre, nm. In subtractive color systems, used in painting and color printing, it is created by ...

, 6 mm wide.

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Pooideae Taxa named by Pierre Edmond Boissier Taxa named by Rudolph Friedrich Hohenacker {{Pooideae-stub