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Rehmannia glutinosa

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Rehmannia glutinosa (Gaert.) Libosch Ex Fisch Et Mey.) It is a perennial herbaceous plant of the Genus Rehmannia in the family Scrophulariaceae.
The rhizomes are fleshy and bright yellow in color; The stem is purple red, and the leaves are ovate to long elliptical in shape. The upper part is green,
and the lower part is slightly purple or purple red. The edges have irregular round teeth or blunt serrations, even teeth. Inflorescence ascending or curved
, slightly arranged into a raceme at the top of the stem, or all solitary leaf axils, flowering from April to July; Capsule oval to long oval, fruiting from April to July
. [16] Dihuang is one of the "Four Great Huai Medicines" with a history of over 1000 years in Mengzhou City, Henan Province. In Southeast Asian countries
, the "Four Great Huai Medicines" are given as rare and precious gifts to each other; Japan, the United Kingdom and other countries refer to the
"Four Great Huai Medicines" as "Chinese Medicine". It is cultivated in various parts of China and abroad, mainly distributed in provinces such as Liaoning,
Hebei, and Jiangsu. It grows in sandy loam, barren mountain slopes, foot of mountains, walls, roadsides, and other places at an altitude of 50-1100 meters.
[15-17] Rehmannia can be divided into fresh and dry Rehmannia; According to the records of traditional Chinese medicine and medical books throughout history,
fresh Rehmannia glutinosa is superior to dry Rehmannia glutinosa in terms of its hemostatic, heat clearing, and fluid generating effects; The Compendium of Materia
Medica records that fresh Rehmannia has the effects of clearing heat and generating fluids, cooling blood, and stopping bleeding, while dry Rehmannia has the
effects of clearing heat and cooling blood, nourishing yin and generating fluids. Can be used for natural floral arrangements.

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