Lolium perenne is a Gramineae Lolium, which grows luxuriantly in spring and autumn. The grass is tender and juicy and has good palatability. It is a good feed for cattle, sheep, rabbits, pigs, chickens, geese and fish.

The grass supply period is from 10 to May of the following year, and it cannot grow in summer.

Lolium perenne is a perennial unfamiliar clump herb of Gramineae rye. The plant height is 80 ~100 cm, the fibrous roots are developed, mainly distributed in the soil layer with a depth of 15 cm, the stems are erect, smooth and hollow, and the color is light green. Generally, there are 60 ~100 tillers per plant, and many tillers can reach 250 ~ 300.

The leaves are dark green and shiny, with a length of15 ~ 35cm and a width of 0.3 ~ 0.6cm, which are mostly covered, and the leaf sheath is longer than or equal to the internodes and tightly phimosis; Ligule membranous, about 1 mm long, spike 20 ~ 30 cm long, with15 ~ 25 spikelets per spike, sessile, closely alternate on both sides of spike axis, and10 ~14 mm long;

There are 5 ~11flower, 3 ~ 5 seeds, the first glume is often degenerated, and the second glume is hard, with 3 ~ 5 veins and 6 ~12 mm long. Lemma is 4 ~ 7 mm long, thin, blunt and awnless;

Palea and lemma are equal in length, sharp and transparent at the top, with fine hairs on the edge, caryopsis spindle shape, and seed 1000-grain weight1.5g.