According to the Pharmacopoeia of China (20 10 edition), Dendrobium is a cultivated product of fresh or dried stems of Orchidaceae plants such as Dendrobium nobile, Dendrobium drumstick, Dendrobium fimbriae and their relatives. Dendrobium 1000 species, there are more than 70 species in China, mainly produced in southwest, south-central and east China. Although the number is quite large, there are not many Dendrobium officinale.

Dendrobium candidum, also known as black knot grass. Modern medical research shows that amino acids, polysaccharides, alkaloids and other components in Dendrobium candidum have the functions of improving immunity, inhibiting thrombosis, inhibiting tumors and delaying aging. Since 1987, the wild Dendrobium candidum has been a national third-class rare and endangered protected plant because of its low natural reproduction rate.

At present, many places in China, such as Ruili in Yunnan, Tiantai in Zhejiang and Kunshan in Jiangsu, have organized media seedling raising, which has reached a certain scale. The analysis of experimental data shows that the polysaccharide content of cultivated Dendrobium candidum is similar to that of wild Dendrobium candidum, the composition and content of various amino acids are consistent, and the content of trace elements is similar.

Extended data:

Dendrobium candidum is known as the "holy medicine for nourishing yin", and Shennong Herbal Classic says that it is sweet and slightly cold, and belongs to stomach, lung and kidney meridians. It has the effects of promoting fluid production, benefiting the stomach, nourishing yin and clearing heat, and is mainly used for treating polydipsia, body fluid injury due to fever, stomachache due to yin deficiency, asthenic heat after illness, and dark eyes due to yin injury. According to the records of syndrome differentiation and treatment, Dendrobium Scrophulariae Decoction (Dendrobium Scrophulariae Decoction) can be used to treat stomach fire and boredom.

According to the Records of Zhejiang Medicinal Plants, Dendrobium, Ophiopogon japonicus and Schisandra chinensis can be decocted instead of tea to treat thirst due to deficiency heat after illness. When using Dendrobium and Fengdou, we should distinguish between medicinal and health care, and the usage and dosage of the two must be distinguished. Traditional Dendrobium is widely used in clinic.

China.-Tell me about Dendrobium candidum.