莼菜是睡莲科多年生宿根草本水生植物，原产我国东南部。自古以来，它就被誉为江南“三大名菜”之一。其营养价值很高，含有丰富的蛋白质、多种氨基酸、各种糖类以及多种矿物质，这些也是构成人体血浆蛋白的主要成份，因此，食用莼菜具有一定的养血功能。此外，它还具有解热、 Ipomoea is a perennial perennial Herbaceous aquatic plants, native to southeast China. Since ancient times, it has been hailed as one of the “three famous dishes” in southern China. Its high nutritional value, rich in protein, a variety of amino acids, a variety of carbohydrates and a variety of minerals, these are also constitute the main components of human plasma proteins, therefore, edible Brasenia has certain nourishing function. In addition, it also has antipyretic,