蒲草是一种宿根水生植物,在沼泽洼地,沟渠、池塘中多有生植。以河北、山东沿渤海湾一带产者最良。此草叶丛生,有平行脈,长有五尺多高,阔九分许,扁而柔软。四五月间抽穗开花。穗形圆长,宛如蜡烛,故又有“水蜡烛草”之名。近年来,在华北海滨一带,对蒲草的种植虽有很大发展,但栽培技术多很粗放,缺乏应有 Pucao is a kind of rooted aquatic plant. It grows in swamps, ditches and ponds. With Hebei and Shandong along the Bohai Bay area, the best producers are. The grasses are clustered with parallel veins. They are five feet tall and tall, and they are wide and nine points long. They are flat and soft. In April and May, heading and flowering. The spike is round and long like a candle, so it has the name “water candle grass”. In recent years, despite the great development of the cultivation of the rushes in the waterfront area of ​​North China, the cultivation techniques are very extensive and lacking