芋属天南星科草本植物,可食部分为球茎。球茎呈圆球形或长椭圆形,顶端有顶芽,周身有环节,每个节上有腋芽。腋芽代替顶芽萌发也可生成新植株,新植株再与种芋相接处的各节上生出新根,随着植株的生长,根的上方逐渐膨大形成短缩茎,即新生母芋,母芋各节上的腋芽萌发形成子芋,子芋的腋芽形成 Taro Araceae herb, edible part of the bulbs. Bulbs are spherical or oblong, the top of the top bud, there are links throughout the body, each section has axillary buds. Axillary buds instead of the top bud germination can also generate new plants, new plants and then to the kinds of roots at the junction of the section to give birth to new roots, with the growth of plants, the root of the gradual enlargement of the top to form short stems, On each section of the buds of axillary bud germination of the formation of sub-taro, axillary bud formation