Rhubarb
Alias: General, Chuanjun, Jinlian Rhubarb
English name: Rhei Radix Et Rhizoma
Main effects: diarrhea and attacking stagnation, clearing heat and diarrhea
Cooling the blood and removing toxins, expelling blood stasis and opening up the menstrual flow, and inducing diuresis to relieve dampness and eliminate rhubarb
Rhubarb, a laxative, is the dried root of Rhubarbia palmatum (Rhubarbia cuspidata) and Rhubarbia tangata (Rhubarbia tangata), both of Polygonaceae family. or the dried root and rhizome of medicinal rhubarb.
Rhubarb is bitter and cold in nature. Attributed to the spleen, stomach and large intestine meridian.
Where is the main place of origin of rhubarb?
Palm-leafed rhubarb and Tangut rhubarb herbs are called northern rhubarb, mainly produced in Qinghai and Gansu. Medicinal rhubarb herbs called South rhubarb, mainly produced in Sichuan.
The medicinal part of rhubarb:
The dried roots and rhizomes of Polygonum palmatum L., Rheum tanguticum Maxim. ex Balf. or medicinal rhubarb Rheum officinale Baill.
The traits and characteristics of the medicinal parts of Rheum officinale:
The product is cylindrical, conical, ovoid or irregular block, 3-17cm long, 3-10cm in diameter.
The surface of those who have removed all the outer skin is yellowish-brown to reddish-brown, and some of them can be seen in the white-like net-like texture and stellar dots (heteromorphic vascular bundles) scattered, and the residual skin is brownish-brown, with many rope holes and coarse wrinkles.
The texture is solid, some of the center is slightly fluffy, the cross-section is light reddish brown or yellowish brown, showing granularity; the pith part of the rhizome is broad, with stellate points ringed or scattered; the root wood part is developed, with radial texture, forming a layer of ring obvious, without stellate points. Gas fragrant, taste bitter and slightly astringent, chewing sticky teeth, sandy feeling.
Rhubarb is bitter and cold, good at attacking and cathartic heat, blood circulation and blood stasis, so women should be careful during pregnancy, menstruation, breastfeeding or avoid taking.