The tuber of Chinese yam is cylindrical in shape, generally growing vertically, with a length of up to 1 meter. The cross section is white after drying, and the stem is usually purplish red and hairless.

Morphological characteristics of yam leaves

The leaves of Dioscorea opposita are opposite above the middle, and alternate at the lower part of the stem. The shapes of the leaves are broad oval, oval triangle and halberd, the top of which is tapered, the base is nearly truncated, the middle lobe is oval to lanceolate, and the side lobes are auriculate.

Sentence describing yam

1, Dioscorea tuber is a commonly used Chinese medicine "Dioscorea opposita". Its root is sweet, warm, flat and non-toxic. It is mainly used to treat injuries, tonify deficiency and win, eliminate cold and heat pathogens, tonify the middle warmer, benefit qi, grow muscles, strengthen yin, take it for a long time, be smart in eyes and ears, and be light-skinned and not hungry for a long time.

2. As a food vegetable, yam has a delicate and smooth taste, so it has a unique flavor when used. It can make many dishes, such as shredded yam, jujube paste yam, etc. It is a very good health food.

Plant properties of yam

Yam, also known as Dioscorea opposita, Dioscorea opposita, Dioscorea opposita, Dioscorea opposita, Yuyan, Sweet Potato, Wild Potato and White Yam, is a winding grass vine of Dioscorea in Dioscoreaceae.

At present, there are seven kinds of common yam in the market, namely common yam, fine-haired yam, ganoderma lucidum yam, yam, dahe taro, iron stick yam and hemp yam.

Yam is distributed in Korea, Japan and China, and in China, it is distributed in Henan, south of Huaihe River in Anhui, Jiangsu, Zhejiang, Jiangxi, Fujian, Taiwan Province, Hubei, Hunan, Guangdong, Guizhou, northern Yunnan, Sichuan, eastern Gansu and southwestern Shaanxi.

Appreciation of Chinese yam pictures