1, material

300g of white yam, half a can of corn kernels, 3 onions, salt 1 tsp, 2 tsps of medium-gluten flour, a little pepper, a little oil, baking paper 1.

Step 2

After the yam is peeled, half of it is shredded and half is ground. Add corn kernels, chopped green onion, medium-gluten flour, salt and pepper to taste.

Stir-fry the mashed yam in the pot, and stir-fry it from time to time until it is cooked.

Put the fried yam mud on the baking paper and smooth it.

Roll it up and let it cool.

Cut into pieces and serve with tomato sauce.

Yam, commonly referred to as Dioscorea, belongs to Dioscorea of Dioscoreaceae. Alias yam, yam, yam, yam, yam, yuyan, yam, wild yam and white yam.

Twisted grass vines. Tubers are long and cylindrical, grow vertically, and the length exceeds 1 m, and the cross section is white when dried. Stems usually purplish red, right, glabrous. Simple leaves, alternate in the lower part of the stem, opposite above the middle, rarely 3 leaves; Leaves vary greatly, from oval triangle to wide oval or halberd, 3- 16 cm long and 2- 14 cm wide, with sharp tips, deep heart-shaped, wide heart-shaped or nearly truncated base, 3-lobed edges, oval to lanceolate middle leaves, round ear-shaped side lobes, and nearly square to rectangular side lobes. At seedling stage, leaves are generally broadly ovoid or ovoid, and the base is deeply heart-shaped. There are often bulbils in the axils of leaves. Dioecious.

Male inflorescence is a spike, 2-8 cm long, nearly erect, with 2-8 flowers inserted in leaf axils and occasionally arranged in a conical shape; Inflorescence axis is obviously serrated; Bracts and perianth segments have purple-brown spots; The outer perianth of male flower is broadly ovoid, while the inner perianth is ovoid and smaller. Stamens 6. The female inflorescence is a spike, and the inflorescence 1 ~ 3 is inserted in the axils of leaves. Capsule is not reflexed, triangular oblate or triangular, with a length of1.2-2cm and a width of1.5-3cm, and white powder on the outside; The seeds are inserted in the middle of the central axis of each locule and surrounded by membranous wings. The flowering period is from June to September, and the fruiting period is July-165438+1October.

growing environment

It grows on hillsides, forests in valleys, streams and roadside bushes at an altitude of 150 to 1500 meters, or has moderate weeds. Dioscorea opposita is a short-day and warm-loving crop. The optimum temperature for seedling growth is 65438 05 ~ 20℃. The optimum growth temperature is 25 ~ 28℃, and the growth is slow below 20℃. It is suitable to grow in loose, fertile and deep soil, while flat species and block species can also grow in shallow and viscous soil. Yam is drought-tolerant, but not waterlogging-tolerant, so it is not suitable for planting in soil with too shallow or too wet groundwater level. The water content of sandy soil and loam is about 65438 08%.

distribution range

It is distributed in Henan, south of Huaihe River in Anhui, Jiangsu, Zhejiang, Jiangxi, Fujian, Hubei, Hunan, Guangdong (Niutou Mountain in Zhongshan), Guizhou, northern Yunnan (Gongshan, Deqin and Lijiang), Sichuan, eastern Gansu and southwestern Shaanxi (350 ~ 1500m).

Main value

Yam is a good product for lung, spleen and kidney. Yam can be cooked with red dates in porridge, soup or stir-fried with various ingredients.

Medicinal use: yam tuber is a commonly used Chinese medicine "Huai yam", and its root can be used as medicine, which is sweet, warm and flat. Has the effects of tonifying deficiency, dispelling cold and clearing heat.

Edible: Tubers are rich in starch and can be eaten by vegetables.