Yam is a tuber, not a rhizome. It is formed by the expansion of the apex of the stem. There are buds on the stem, but there are not many bud points and many adventitious roots on the surface.

According to the structure and function of Chinese yam, it belongs to tuber. The tuber of Chinese yam is long and cylindrical, and its growth trend is vertical, and its length can reach 1 meter at the longest. If it is cut off, the cross section is white. In addition, its aboveground stems are purplish red and its surface is hairless.

Does yam eat roots or stems?

Yam generally eats stems, which has the effects of nourishing spleen and stomach, promoting fluid production and resolving phlegm, clearing away heat and toxic materials, tonifying kidney, lowering blood sugar and regulating the body's responsiveness to non-specific stimuli.

Yam root system

Yam belongs to both medicinal crops and edible plants. Its root system belongs to fibrous root system, which consists of seed root and tuber root, and its root belongs to tuber root.

Picture of yam appearance