甜山芋,大家都是很熟悉的,也是大家喜欢吃的。它的名称很多,如番藷、番芋、山芋等等,在生物学或农业科学的书藉中,通用甘藷,学名叫做Ipomaea batatas,Lam。甘藷是旋花科的植物,茎蔓生。叶互生,掌状,深裂或浅裂(图一)。根有两种,一种须状的管吸收水份养料,一种块状的管贮藏水份养料,并兼有繁殖等作用;我们食用的 Sweet Hill, everyone is familiar with it, but also everyone likes to eat. Its name is many, such as sweet potato, pancake, hawthorn, etc. In the book of biology or agricultural science, generic sweet potato, scientific name is Ipomaea batatas, Lam. Sweet potato is a plant of the family Convolvulaceae. Leaves alternate, palmate, deeply lobed or lobed (Figure 1). There are two kinds of roots, a must-like tube that absorbs water and nutrients, a block-shaped tube that stores water and nutrients, and has the function of reproduction; we consume