The root is lotus root, commonly known as lotus root (everyone eats that thing piece by piece and grows in the mud)

The flower is lotus or lotus.

The fruit is lotus, and the fruit with lotus inside is called lotus seed.

Extended data:

Lotus belongs to the family Nelumbo, which is the general name of two plants of the genus Nelumbo. Also known as lotus, water hibiscus and so on. It is a perennial aquatic herb flower of lotus. Underground stems are long and thick, with long nodes and round leaves. Flowering from June to September, it is solitary at the top of the pedicel. There are many petals embedded in the receptacle hole, which are red, pink, white and purple, or have colored lines and edges. Nuts are oval and seeds are oval.

There are many kinds of lotus flowers, which are divided into ornamental and edible categories. China is native to tropical and temperate Asia and was planted as early as the Zhou Dynasty. Lotus is precious all over the body, lotus root and lotus seed are edible, and the germ of lotus seed, rhizome, lotus node, lotus leaf, flower and seed can be used as medicine. Its character of emerging from the mud without staining has always been praised by the world.

"The next day, the lotus leaves are infinitely colorful, and the lotus flowers reflect different colors in the sun" is a true portrayal of the beauty of lotus flowers. The noble character of lotus flower "straight through the outside, not crawling, not stained with mud, clear but not demon" has always been one of the themes of poets' painting.

1985 in may, lotus was rated as one of the top ten flowers in China. Lotus is the national flower of India and Vietnam.

Lotus is a perennial aquatic herb; Rhizomes are transverse, hypertrophy, swollen internodes, with many longitudinal airways inside, constricted internodes, black scales at the top and hairy adventitious roots at the bottom.

The leaves are round and shield-shaped, with a diameter of 25-90 cm. The surface is dark green, covered with wax white powder, the back is gray-green, the whole edge is slightly wavy, the upper surface is smooth and white powder, and the lower vein is ejected from the center, with 1-2 branches. Petiole is stout, cylindrical, 1-2 meters long, hollow, with scattered thorns outside. Pedicels and petioles are the same length or slightly longer, and there are also scattered spines; Petiole cylindrical, densely barbed.

The flower is solitary at the top of the pedicel, above the water surface, with a diameter of 10-20 cm, beautiful and fragrant; There are single petal, compound petal, double petal and double terrace patterns; Colors are white, pink, crimson, lavender, yellow or intermediate colors.

Lotus leaves are oblong-ovoid to obovate, 5- 10 cm long and 3-5 cm wide, gradually decreasing from outside to inside, sometimes becoming stamens, with blunt or slightly pointed apex and many stamens; The pistil is free and buried in the inverted cone sponge receptacle, and there are many scattered honeycomb holes on the receptacle surface. After fertilization, it gradually expands, called lotus, and a small nut (lotus seed) is born in each hole. Anthers are long, filaments are slender and inserted under receptacle; The style is very short, and the top of the column is born; The receptacle (lotus house) is 5- 10 cm in diameter.

Nuts are oval or ovoid, long 1.8-2.5 cm, and the fruits are leathery and hard, and dark brown when ripe; The seed (lotus seed) is ovoid or ovoid, with a length of 1.2- 1.7 cm and a red or white seed coat. The flowering period is from June to September, and it opens and closes every morning. Fruit-bearing period: August -65438+ 10. There are many cultivated varieties of lotus, which can be divided into three systems according to different uses: lotus root, lotus seed and Hualien.

Lotus is an aquatic plant, which likes relatively stable and calm shallow water, lakes, swamps and ponds, and is its suitable habitat. The water demand of lotus depends on the variety. The relative water level of large plant-shaped varieties such as Gulian and Chiba is deep, but it cannot exceed 1.7 meters. Small and medium-sized plants are only suitable for water depth of 20-60 cm.

Meanwhile, lotus is very sensitive to water loss. As long as you don't irrigate for three hours in summer, the lotus leaves planted in the water tank will be sluggish. If the water is stopped for one day, the lotus leaves will be burnt and the buds will wither. Lotus is also very fond of light, and it needs a full light environment during its growing period. Lotus is extremely intolerant of shade, so it will show strong phototaxis when it grows in semi-shade.

Baidu encyclopedia-lotus