The scientific name is Rhubarb. It is the root of Rumex crispus L. of Polygonaceae. Distributed in Northeast China, North China, Shaanxi, Gansu, Qinghai, Fujian, Taiwan Province, Guangxi, Guizhou and other places. It has the effects of clearing away heat and toxic materials, cooling blood to stop bleeding, relaxing bowels and killing insects. Commonly used for acute and chronic hepatitis, enteritis, dysentery, chronic tracheitis, hematemesis, epistaxis, hematochezia, metrorrhagia, constipation due to heat, carbuncle, scabies and alopecia.

Indications: It can be used for acute and chronic hepatitis, enteritis, dysentery, chronic tracheitis, hematemesis, epistaxis, hematochezia, metrorrhagia, constipation due to heat, carbuncle, scabies and alopecia.

Morphological characteristics:

Perennial herb, 50- 100cm high. The root is thick, yellow and sour. Stems erect, usually unbranched, shallowly grooved. Leaves alternate; Stipules sheath is membranous, tubular and often ruptured; Leaf blade lanceolate or oblong-lanceolate, length 12- 18cm, width 2-4.5cm, short tapering at the apex, tapering at the base, wavy wrinkles at the edge and hairless on both sides.

Most flowers gather in leaf axils, or form short racemes to form a long and narrow panicle; Tepals 6, 2 whorls, persistent; Stamens 6; Stigma 3, brush-shaped. Achene is triangular, with sharp edges, 2mm long and brown and shiny. The flowering and fruiting period is from June to August.

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Growing environment:

Born in ditch-side wetlands, river banks and beside Shuidianzi. Distributed in Northeast China, North China, Shaanxi, Gansu, Qinghai, Fujian, Taiwan Province, Guangxi, Guizhou and other places.

References:

Baidu Encyclopedia Rhubarb