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你到过杭州西湖吗?从夏日到中秋季节,西湖水面上,碧绿的荷叶象一个个圆盘,上面滚着珍珠般的水珠,点点的荷花争相斗妍,使人们对西湖留连忘返.摘一片荷叶仔细观察,你会发现荷叶的叶柄表面分布无数的小刺,刺尖端向下,这可以防虫类侵害.叶柄颇长,粗大,成茎状,内部有无数孔隙,为空气的通路.最先生出的叶很小,柄较短,其后叶片逐渐增大,柄增长.到一定高度,又逐渐缩短,叶形较小.背微红的是终止叶,标志着藕已成熟.在荷叶中,含有荷叶碱、荷梗碱等几种对人体有益处的生物碱.还含有荷叶
Have you been to Hangzhou West Lake? From summer to Mid-Autumn Festival, the surface of the West Lake, the green lotus leaf like a disc, rolling pearl-like drops of water on top, little lotus fight Ye Yan, so that people stay on the West Lake Forget to return pick a lotus leaf careful observation, you will find lotus leaf surface petioles distributed numerous small thorns, the pricker down, which can prevent pest class petiole long, thick, into a stem-like, with numerous pores inside, The path for the air .Mr.Miss leaves are very small, stalk shorter, then the leaves gradually increased, the handle grows to a certain height, and gradually shortened, leaf-shaped smaller back dusky is the termination of leaves, marking the Lotus root is mature in the lotus leaf, containing lotus leaf base, pediatric alkali and other alkaloids beneficial to human body also contains lotus leaf