Poa annua L. wani nau'i ne na tsire-tsire na shekara ɗaya ko na hunturu. Straw madaidaiciya ko karkata, mai laushi, har zuwa 30cm tsayi, mai laushi ba tare da gashi ba. Leaf sheath kadan flattened, hasken launi ko juyawa, m texture, sau da yawa akwai crossveins, saman sharp ne jirgin ruwa siffar, gefen kadan rough. conical furanni tsari m kwaya, kananan spike kwaya, dauke da kananan furanni, kore; Ying mai ƙarancin siffa, waje straw kwai zagaye, saman da gefen wide membrane siffa, tsire-tsire rawaya, Ying 'ya'yan itace spindle siffar, 4-Mayu fure, 6-Yuli sakamakon.

Rarraba a lardunan kudu da arewa na kasar Sin: Jiangsu, Sichuan, Guizhou, Yunnan, Guangxi, Guangdong, Hainan, Taiwan, Fujian, Jiangxi, Hunan, Hubei, Anhui, Henan, Shandong, Xinjiang, Gansu, Qinghai, Inner Mongolia, Shanxi, Hebei, Liaoning, Jilin, Heilongjiang. Kasancewa a Turai, Asiya da Arewacin Amurka. An haife shi a kan ciyawa a gefen hanya, a kan filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin filin

Hailongjiang tsire tsire furanni tsireMasana'antun suna rarraba tsire-tsire na ciyawa a matsayin noma na ciyawa, saurin girma, gasa mai ƙarfi, da zarar an yi ciyawa, ciyawa yana da wuya a mamaye shi. Har ila yau, regenerative karfi, juriya trimming, juriya trampling, ciyawa kyau, tare da kyau uniformity, yawa da kuma smoothness, dacewa da gina kowane irin ciyawa.