Eleocharis tuberosa, also known as horseshoe, water chestnut, black taro, Tilia amurensis, etc., belongs to monocotyledonous Cyperaceae and is a perennial herb. There are slender creeping rhizomes, and tubers are born at the top of the creeping rhizomes, with common leaves and water chestnuts.

It is native to China and widely distributed all over the world. It is cultivated all over the country, especially in tropical and subtropical regions. The skin of Eleocharis tuberosa is purple-black, the meat is white, the taste is sweet and juicy, crisp and delicious, and it can be eaten as both raw fruit and vegetables. Bulbs are rich in starch, which is delicious for raw food, cooked food or starch extraction. It is also used for medicine, appetizing and detoxifying, eliminating overnight food and strengthening the stomach.

Extended data:

Main varieties:

1, eleocharis nigra

Eleocharis nigra is a plant of Eleocharis in Cyperaceae, which is distributed in Japan, Taiwan Province, Myanmar, Malaysia, Thailand, Indonesia, India, Guangdong, Hainan, Fujian and other places in Chinese mainland, and is generally born on the roadside and beside the water.

2. Guilin horseshoe

Local varieties in Guilin, Guangxi. Plant height100-120cm, spreading degree 20cm. Bulbs are oblate, with a height of 2.4 cm and a transverse diameter of 4 cm. The terminal buds are thick and the two lateral buds often stand side by side, so they are called "three-masted". The skin is reddish brown, the meat is white, and the single one weighs 30 grams. Mainly fresh food, but also cooked food and processing, with high sugar content, crisp meat and excellent quality. Strong growth and strong lodging resistance.

3. Water chestnut

Guangdong local varieties. The plant height is 70-90cm, and the spreading degree is15-20cm. Bulbs are oblate, with a height of 2 cm and a transverse diameter of 2.5-3 cm. The terminal buds are long and sharp, with dark brown skin and white flesh. Single weight10g. Starch content is high, mainly cooked food and starch production. Strong growth, strong resistance, moisture resistance and storage resistance.

4. leek

Originally from the Philippines. Plant height110-120cm. Bulbs are large, oval, with a transverse diameter of 4 cm and a longitudinal diameter of 2.6 cm, each weighing 25 g, crisp and sweet, with good quality, mainly fresh food, with an yield of more than 2000 kg per mu.

5. Xiaoganzhen

Local varieties in Xiaogan City, Hubei Province. Plant height is 90-110cm. Bulbs are oblate and bright red, with an average weight of 22g, thin skin, sweet taste, less fine slag, mainly fresh food and good quality. Per mu yield 1000- 1500 kg.

6. Su Shi

Local varieties in Suzhou City, Jiangsu Province. Plant height100-110cm. Bulbs are oblate, the terminal buds are pointed, the umbilicus is flat, the skin is thin, the meat is white, and the weight of a single bulb is about15g. Suitable for processing and canning. The yield per mu is 750- 1000 kg.

7. Yuhang Village

Yuhang County, Hangzhou City, Zhejiang Province, local varieties, bulbous oblate, thick and straight terminal buds, flat umbilicus, brownish red skin, thin skin and sweet taste, each weighing about 20 grams. Suitable for processing canned food and fresh food, the yield per mu is 1000- 1200 kg.

8, the light flood water chestnut

Due to the special soil of Guanghong (located in Shetianqiao Town, Shaodong, Hunan Province), the water chestnut produced every winter is white, red and thin, crisp and sweet. The size is moderate. Every year, the date of production, tourists snapped up an endless stream! The local people also call it "Ci Gu Zi".

9. Wild water chestnut

Wild water chestnut has long creeping rhizomes, most of which are clustered, upright and cylindrical, with a height of 30- 100 cm, a diameter of 4-7 mm, gray-green, and a diaphragm in the middle. After drying, the surface of the stalks has nodes. Leaves are absent, and there are only 2-3 leaf sheaths at the base of the stalk. Spikelets are cylindrical, slightly green, blunt at the top, and have many flowers. The style base narrows upward from the wide base to form a equilateral triangle, which is produced in China, Fujian and Guangdong.

10, Eleocharis densiflora

Eleocharis densiflora is a plant of Eleocharis in Cyperaceae, which has not been artificially introduced and cultivated. It is distributed in India, Viet Nam and Yunnan, Chinese mainland, and grows at the altitude of 1300 m to 1400 m, mostly beside streams, ponds and forest edges.

References:

Baidu encyclopedia-water chestnut