Red bean tree, with Latin scientific name hosi ia hosi ei, belongs to Leguminosae red bean genus (tree), also known as red bean tree, Hubei red bean and Jiangyin red bean. Evergreen or deciduous trees, up to 20 ~ 30 meters, DBH up to 1 meter; The bark is grayish green and smooth. Branchlets green; Odd-pinnate compound leaves, with 2 pairs of leaflets, alternate or opposite, thin leathery, ovoid or ovoid-elliptic, acute or tapering at the apex, rounded or broadly cuneate at the base, and 8 ~ 10 pairs of lateral veins. Panicle terminal or axillary, long 15 ~ 20 cm, pendulous; Flowers are thin and fragrant; Corolla white or reddish. The pod is nearly round, flat, with a short beak at the top, and the fruit petal is nearly leathery and brown, with 1 ~ 2 seeds. The seeds are nearly round or oval, with a length of 1.5 ~ 1.8 cm, a width of 1.2 ~ 1.5 cm, a thickness of about 5 mm and a bright red seed coat. The flowering period is from April to May, and the fruiting period is 10- 1 1.

Shaanxi (South), Gansu (Southeast), Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, Hubei, Sichuan, Guizhou and other places. Most of them were born by rivers, hillsides and valleys.

Red bean tree is a kind of red bean (tree) distributed in the northernmost latitude, which is relatively cold-resistant. The wood is hard and meticulous, the texture is shiny and beautiful, and the heartwood is resistant to decay. It is a precious material for excellent wood carving technology, high-grade furniture, special decoration and inlay. Roots and seeds are used as medicine. The tree has elegant posture and shady crown, which can be used as a good landscaping tree species. The seeds are bright red and the color remains unchanged for many years. They are often given to relatives and friends as a symbol of nostalgia. Since ancient times, red beans have been regarded as a symbol of love and acacia. At present, there are few big trees, which are national second-class protected wild plants, such as red beans, red beans, red Mi Dou, Mi Dou and so on.

It tastes plain and sweet.

Efficacy: strengthen the spleen to stop diarrhea, diuretic and detumescence.

It is suitable for people with various edema, including renal edema, cardiogenic edema, ascites due to liver cirrhosis, malnutrition edema, etc. If you can eat it with mullet, carp or yellow hen, the swelling effect will be better; Suitable for postpartum hypogalactia and postpartum edema, you can simply drink soup or cook porridge with red beans; Suitable for obese people.

Herbal dietotherapy: "Cook with carp to cure beriberi and abdominal edema." Edible materia medica: "Red beans strengthen bones and muscles, pump muscles, and thin people eat them for a long time." Publisher: "Milk, boiled adzuki beans, drink juice." Compendium of Materia Medica: "Tongnai is cooked with carp, crucian carp and yellow hen."

Do not eat adzuki beans, adzuki beans can benefit waterways, so people who urinate too much should avoid eating.

Tao Hongjing said: "Sex is draining body fluid, and eating for a long time makes people thin." Materialism of eating: "Eat thin people for a long time." New edition of materia medica: "adzuki bean can benefit water temporarily, but not for a long time." Dampness is mostly due to qi deficiency, diuresis, turning to deficiency, and dampness cannot be removed. In addition, adzuki beans are only beneficial to the water in the lower body and not to the wetness in the upper body. Covering the lower body is really wet and effective; The dampness and deficiency of the upper body are also very beneficial and inseparable. Compendium of Materia Medica: "adzuki bean, its sexual decline, will drop too much after taking it for a long time, and the body fluid will leak out, so the muscles will be thin and heavy." "Life and Taste Diet Spectrum": "Red beans should not be bitten by snakes within 100 days. "

It is said that adzuki beans are not as nutritious as soybeans. Adzuki bean not only contains protein and fat, but also contains vitamins A, B, C, plant saponins and trace elements such as aluminum and copper. It should also be noted that adzuki bean and acacia are similar in appearance and both have aliases of "red bean". Sophora japonica seeds are produced in Guangdong, and their appearance is half red and half black. Acacia seeds were mistaken for adzuki beans to cause poisoning before, so don't confuse them when eating.

According to Jia Ming's "Food Guide" in Yuan Dynasty, the flowers of adzuki beans are called "rotten women", which can relieve alcoholism and make people not drunk when they drink too much.