The latest species and identification methods of Rehmannia glutinosa
Dihuang is a perennial herb belonging to Scrophulariaceae. There are three main types of rehmannia, namely, raw rehmannia, prepared rehmannia and fresh rehmannia. Let's find out how to distinguish these three!
Radix rehmanniae
[Shape] Most of them are irregular clumps or oblong, expanded in the middle, slightly thin at both ends, some are small, elongated, slightly flat and twisted, extremely wrinkled, with irregular transverse curved lines, weight, soft and tough, not easy to break, shiny, sticky, 6~12 cm long, 3~6 cm in diameter.
[Color] Surface brownish black or brownish gray, section brownish black or black.
[Smell] Slightly sweet.
prepared Rehmannia root
[Shape] Irregular pieces, fragments, different sizes and thicknesses, shiny, sticky, soft and tough, not easy to break.
[Color] Black surface, black section, shiny.
[Smell] Slightly fragrant and sweet.
fresh Rehmannia
[Shape] Spindle-shaped or strip-shaped, thin skin, curved wrinkles, transverse long dermatomes and irregular scars, radial veins on one part of the leaf, 9~15 cm long, 1~6 cm in diameter.
[Color] Light red yellow surface, fleshy, yellowish white section, orange oil spots visible.
[Smell] Slightly sweet and bitter.
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The latest processing method of Rehmannia glutinosa
Rehmannia glutinosa is one of the four major Huai medicines, which has a long history, cool in nature, sweet and bitter in taste, and has the effects of nourishing yin and kidney, nourishing blood and cooling blood. According to the different effects of the processing methods, let's take a look at the processing methods of Rehmannia glutinosa.
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Distribution of the latest Rehmannia glutinosa
Rehmannia glutinosa is a perennial herb of the genus Scrophulariaceae, which is born on hillsides and roadside wastelands at an altitude of 50,1100m. It is named because its underground root is yellow and white. Its root is one of the traditional Chinese medicines. It first appeared in the Classic of Shennong Materia Medica. Here we come.
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