Water taro is a perennial water plant, the rhizome is relatively thick, cylindrical, about 50 cm in length.
The shape of the tuber of taro is ovoid. There are many small tubers in the shape of small balls.
The leaf length of taro is about 6 to 14cm, the width is about the same, the petiole is cylindrical, the length is about 12 to 24cm.
The leaf shape of taro is ovate, the length is about 20 to 50 cm, the petiole is longer than the leaf, about 20 to 90 cm.
The inflorescence stalk of taro is 15 to 30 cm long, 0.8 to 1.2 cm thick, and the inflorescence of fleshy panicle is about 1.5 to 3 cm long. The florescence is late, concentrated in summer, and open from June to July.
The inflorescence stalk of taro is usually solitary. The inflorescence length of fleshy spike is about 10 cm. The flowering period is early, from February to April.