论文部分内容阅读
牛蒡 ,为菊科2年生植物 ,在我国东北和欧洲均有野生种 ,但作为栽培种 ,目前只有日本种植较多 ,近几年我国从日本引进试种已获成功 ,河南、山东种植较多。1特征特性牛蒡叶心脏形 ,叶柄较长 ,叶背密生灰白色茸毛 ,直根深扎薹于土中 ,根长40~100cm。5~6月抽薹 ,薹高?
Burdock, a biennial plant Compositae, has wild species in northeastern China and Europe, but as a cultivated species, only Japan is currently growing more. In recent years, China has succeeded in introducing and cultivating it from Japan. Henan and Shandong have planted more . 1 characteristic characteristics Arctium lappa leaf heart-shaped, petiole longer leaves gray-white hairy hairy dense, straight roots deep sedge in the soil, root length 40 ~ 100cm. 5 to 6 months bolting, sedge high?