香附子属莎草科,又名莎草、三棱草、水葱子等,多数有地下根状茎,根状茎细长,顶生椭圆形褐色块。秆三棱形直立,叶基生比秆短,长有侧枝,属聚伞花序,有3～6个开展的辐射枝,块茎和种子均可繁殖,属多年生草本杂草。在河南一般4～5月份发芽出苗,6～7月份抽穗开花,8一10月份结籽成熟,主要分布在中南、华东、西南各省以及河北、山西、陕 Cyperus subgenus Cyperus, also known as sedge, Scutellaria, water, etc., most of the underground rhizomes, rhizomes slender, top students oval brown block. Culms triangular upright, basal leaves shorter than the culm, long side branches, is a cyme, with 3 to 6 radiation branches, tubers and seeds can be reproductive, is a perennial herb weeds. In Henan 4 to May germinate emerge generally, from June to July heading and flowering, maturity August 8-10, mainly in central and southern, east, southwest provinces as well as Hebei, Shanxi, Shaanxi