Also known as thatch, white fescue, white fescue root, is a perennial herbaceous plant in the genus thatch, family gramineae. Plant height 20-80 centimeters. Root stout stem white, transverse to the ground, dense, node born with scales, the apex pointed with a sweet taste. Rods tufted, erect, simple leaves alternate, set at the base, often with broken fibrous leaf sheaths at the base when old. Leaf blades flattened, striped or striped-lanceolate, flowering in summer, panicles terete. Flowers silvery white, densely branched, spikelets 3-4 mm long, stipitate. Glumes ellipsoid, dark brown. White villous.

[Health Benefits] Cooling the blood and benefiting the blood, clearing heat and lowering blood pressure.

[Method of application]Edible: Young flower buds are edible, with sweet flavor; pick the roots in June, peel off the skin and hairs, and chew them raw, with sweet juice; also can be boiled in water.

Medicinal use: leucaena root, leucaena flower, leucaena can be used as medicine.