Yam Dioscorea polystachya Turcz., Diospyraceae
Legend has it that in ancient times, shennong clan was seriously ill, in order to heal, he led the wen and wu hundred officials, wives and family members, wading through the mountains and waters, walking widely among the people, in an autumn high and refreshing, the morning breath of the spleen, Shennong clan and his party traveled to Bochangli (now Wuzhi and Wenxian border Dafeng Town) into view of the green leaves covered the ground, a hundred flowers, and sighed: "True is the blessed land of the Immortals!" Subsequently, he ordered the hundred officials to pick up four kinds of grass root flower buds, and water to serve them, and soon they would be cured, so they ordered the four officials of the mountain, ox, land, and chrysanthemum to plant, so they were named yam, ox knee, ground yellow, and chrysanthemum, which may be the earliest origin of the "four great herbs" that posterity has passed down. Dayu zhi water migrant workers recruited four directions, water and soil are not satisfied, diarrhea is not stopped, Dayu takes yam decoction soup to make the migrant workers serve, heal, the day of achievement, in Bochangli, the great seal of the meritorious, the name of the great fief place is derived from this.
Legend has it that in the ancient Tangyin countryside, there was a couple, the heart is not good, this daughter-in-law always looks forward to the early death of the mother-in-law, every day to the mother-in-law to eat a bowl of porridge, after a period of time, the mother-in-law is weak, bedridden. This matter let an old Chinese medicine doctor in the village know, this old Chinese medicine doctor wanted to count the calculations, one day he called this couple and gave them a kind of medicine powder, just say that you put this medicine powder and in the porridge to this mother-in-law to eat, I kept her for a hundred days after the death, the result of this small two mouths to take this medicine powder back after doing this method, just and in this porridge every day to her mother-in-law to eat, the result is that after ten days the mother-in-law can get up and move, after a hundred days the mother-in-law body will be raised white and fat, Later, this mother-in-law praised this daughter-in-law for being good to her in the village, and with the adjustment of the old Chinese medicine, this pair of contrarian sons can be said to have become a pair of filial pieties.
There is also an anecdote about the ability of yam to nourish and strengthen people, saying that once upon a time, a weak country was chased by a strong country and fled into the mountains, and the soldiers of the strong countries surrounded the whole mountain, waiting for the people in the mountains to run out of food and grass and come out to surrender. As a result, a month passed, two months passed, three months passed, and the soldiers of the strong country thought that all the soldiers in the mountains were starving to death and relaxed their guard. However, one night, the shouts in the mountains were everywhere, and the soldiers of the weak countries were full of energy, shouting and rushing out, killing the siege army in a complete defeat. It is rumored that these weak national troops are trapped in the mountains, and after being guided by high people, digging and eating wild yams in the mountains is not only enough to wrap the abdomen, but also can strengthen the bones, multiply the energy, and move lightly, so they can win in one fell swoop in the breakthrough.
[Aliases] Potato, Yam ("Benjing"), Zhuju, Shuyu, Yuyan ("Wu Pu Bencao"), Shanxue ("Beilu").
Source: Tuber of Dioscorea opposita Thunb.
【Form】Perennial winding herb. The tuber is cylindrical, grows vertically, has a grey-brown outer coat, and has whiskered roots. The stem is slender, cranky, ribbed, smooth and glabrous. Leaves are paraphytic or 3-lobed, and bead buds (name zero remaining seeds) are often born between the leaf axils; the leaf shape is varied, triangular ovate to triangular wide ovate, smooth and hairless; leaf veins are 7 to 9 basal; petioles are slender, 1.5 to 3.5 cm long. The flowers are unisexual, dioecious; the flowers are extremely small, yellow-green, and inflorescences in the panicle.) The capsule has 3 wings, and the length of the wings is almost equal to the width. Period from July to August. The fruiting period is from September to October. Vines (yam vines) and pearl buds (zero remaining seeds) are also used for medicinal purposes.
【Distribution】Where the mountains and fields are sunny. It is now cultivated everywhere.
【Preparation】Yam: Remove impurities, soak in water until the central part of the yam is softened, fish out and dry slightly, slice and dry or dry. Stir-fried yam: first spread the bran evenly in a hot pot, smoke up, add the yam tablets and stir-fry until the light yellow is the degree, take out, sift off the bran, let cool (100 tablets per yam tablet, 10 pounds of bran).
【Sexual taste】Sweet, flat, non-toxic. The living are cool, and when they are cooked, they turn cold into warmth.
【Returning to the meridian】Into the lungs, spleen, kidney meridians. Start, foot Taiyin Erjing.
【Indications】Strengthen the spleen, replenish the lungs, strengthen the kidneys, and improve the sperm. Cure spleen deficiency diarrhea, long diarrhea, fatigue cough, thirst, sperm retention, belt down, frequent urination.
【Dosage】Internal use: decoction, 3 to 6 yuan; or into pills, loose. External use: mashing.
[Note] Those who have real evil are forbidden to obey. Zizhi and Ermendong are made of evil and rebellious.
【Selection】
(1) Treat spleen and stomach weakness, do not think about eating: yam, white art one or two each, ginseng three points. On the three flavors, mash for fine mince, boiled white batter for pills, such as small beans large, each serving thirty pills, hollow food before warm rice to drink. ("General Records of Saint Francis", Yam Pill)
(2) Cure the weakness of the heart and abdomen, cold hands and feet, or drink bitter cool agents, vomit before eating in the morning, or vomit when smelling food, do not think about eating, this is the spleen and stomach weakness: yam taste, file as large as adzuki beans, half fried hot, half raw, for the end, each serving two dollars, rice drink down, take twice a day. (Pujifang))
(3) Cure the dizziness of the winds, benefit the essence, strengthen the spleen and stomach: yam powder, tongqu rice wine; or with dogwood, schisandra, ginseng and other medicines soaked in wine and drink. ("Outline" Yam Sake)
(4) Make up for the scorched cold, frequent urination, thinness and weakness: yam in the sand basin to study fine, into the chole, with a large spoon of wine, boiling incense, swirling to add a lamp of wine, stir evenly, hollow drink, every once taken. ("Shenghui Fang"), or with potatoes (boiled in alum water), white poria, equally divided into ends. Two dollars per serving, water sent down. (Compendium of Materia Medica)
(5) Cure phlegm and asthma: mash half a bowl of yam, add half a bowl of sugarcane juice, and drink evenly. ("Simple Unilateral",)
(6) Cure swelling and poisoning at the beginning: use yam, castor beans and glutinous rice with mud in equal parts, soak water into mud, and apply to the swollen area. (Pujifang)
(7) Cure lactation clumps and various pains for a long time, hard and not broken: fresh yam and amaranth, white sugar frosting together to mash the affected area. After applying it, the itch was unbearable, and the patience gradually stopped. (The Book of The Book of Fengyuan)
(8) Cure frostbite: a little yam, grind it on the new tiles into mud, and apply it to the sores. ("Confucian Affair")
(9) Damp heat and weakness. Divide yam and cangshu into equal parts, and add rice to make balls and rice soup and serve. (Compendium of Materia Medica)
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