凤眼莲俗名水浮莲、水葫芦,为雨久花科多生浮生水面宿根草本植物。其叶柄奇特,叶色鲜绿,花色蓝紫,异常美丽,是一种良好的水生观赏花卉。各地广为栽培,多用来绿化池塘,也可盆栽观赏,花可作切花插瓶。凤眼莲的老家在委内瑞拉。1844年在美国的一个博览会上,被誉为“美化世界的淡紫花冠”,从此作为观赏植物纷纷被各国引种。哪知其繁殖能力极强,能在极短的时间占领整个水面,常常堵塞航道。人们不得不喷洒药物、用机械粉碎甚至用炸药去炸,耗费了巨资,因此又被咒为“百万美元杂草”。今天它再度身价倍增,重受重视。它对富营养化的江河湖泊的净化有一定作用。传统的物理化学方法无法消除富营养化,而它却能大量吸收水中的氮、磷元素,使水体得到净化。美国在遭受有机污水污染的湖泊 Eichhornia Commonly known as water lettuce, water hyacinth, rain for a long time Kodohido floating surface perennial herb. Peculiar petiole, leaf color, bright green, unusual beauty, is a good aquatic ornamental flowers. Widely cultivated around, used to green ponds, but also potted ornamental flowers can be cut flowers inserted bottle. Emerald’s home in Venezuela. In 1844 at an exhibition in the United States, known as “the lilac crown beautify the world”, since then have been introduced as ornamental plants in various countries. I do not know its reproductive capacity is extremely strong, in a very short period of time to occupy the entire surface, often blocking the waterway. People have to spray drugs, crushed with mechanical or even explosives, cost a lot of money, so they have been cursed as “millions of dollars of weeds.” Today, it once again worth twice as much attention. It has some effect on the purification of eutrophic rivers and lakes. Traditional physicochemical methods can not eliminate eutrophication, but it can absorb a large number of nitrogen and phosphorus in water, so that water purification. The United States is polluted by organic sewage in the lake