It is a kind of plant. The lotus root is the rhizome of the lotus flower.

The lotus flower has a long history of cultivation and is grown in a wide range of regions, so it has given rise to many different names in the spoken language, such as lotus, water hibiscus, lotus flower, lotus flower, lotus flower, Nymphaea, Nymphaea, water chi, and Shuihua, among other aliases.

Lotus and lotus, both of which initially referred specifically to certain parts of the lotus flower, gradually became synonymous with the whole plant over time. Lotus, according to Zheng Xuan of the Eastern Han Dynasty, Mao Jin of the Ming Dynasty and Li Shizhen, takes the meaning of load, representing the characteristics of the lotus stem and root.

Morphological features:

1. Roots: whisker-like adventitious roots, attached to the underground stem nodes, fascicles, 5-8 fascicles per node, each fascicle has 7-21 adventitious roots. The root system is mostly shallow and weak.

2, stems: underground stems, in the soil 10-20cm deep horizontal slender as finger-thick branches for the lotus whip. Late in the growth period, the lotus whip at the apex of several sections of the internode is obviously expanded and thickened, and become a lotus root for food.

The first larger root is the main root, which is divided into 2-4 "daughter roots", and the larger daughter roots can be divided into "grandson roots". The first section of the main root is shorter and is called the "root head"

3. Leaves: large, simple leaves, arising upward from the nodes of the stem, with long stalks.

4, flowers, fruits and seeds: attached to the nodes of some of the larger standing leaves. Flowers solitary, corolla with multi-petal composition, bisexual flowers. The fruit is a rosette, in which the scattered embedded lotus seeds, which are the true fruit, are nutlets.

Expanded Information:

p>The underground stem of the lotus is called lotus root, water lily family, aquatic vegetables, the shape of the fat and knobbly, with small tubular holes, divided into red lotus root, white lotus root, sesame root.

The safflower lotus root is long and thin, with a tawny, rough outer skin, little water and not crisp; the white lotus root is fat, with a tender, smooth, silvery-white appearance, crispy and juicy flesh, and a strong sweet flavor; the sisal lotus root is pink, with a rough appearance, and contains a lot of starch.

Baidu Encyclopedia - Lotus (herb belonging to the family of Lotus)

Baidu Encyclopedia - Lotus Root

Xinhua.com - Water Lily and Lotus Flower, Can You Tell Them Apart?