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Isatidis Radix root slices indago woad ban lan gen

Radix Isatidis
Anti-flu measles syphilis scarlet fever toxic herbs
Description

Woad (or glastum) is the common name of the flowering plant Isatis tinctoria in the family Brassicaceae . It is commonly called dyer's woad, and sometimes incorrectly listed as Isatis indigotica (a newer and invalid name for the same plant). It is occasionally known as Asp of Jerusalem. Woad is also the name of a blue  dye produced from the plant. Woad is pronounced  to rhyme with road.

Woad is native to the steppe  and desert zones of the Caucasus  Central Asia to eastern Siberia  and Western Asia ,but is now found in southeastern and some parts of Central Europe  as well. It has been cultivated throughout Europe, especially in Western and southern Europe, since ancient times

Recently, scientists have discovered woad might be used to prevent cancer, having more than 20 times the amount of glucobrassicin contained in broccoli. Young leaves when damaged can produce more glucobrassicin, up to 65 times as much.

Indigowoad Root  is a traditional chinese medicine herb that comes from the roots of woad, but often incorrectly listed under the synonymic name, Isatis indigotica. It is also known as Radix Isatidis. The herb is cultivated in various regions of northern china , namely Hebei , Beijing , Heilongjiang , Henan , Jiangsu , and Gansu  The roots are harvested during the autumn and dried. The dried root is then processed into granules, which are most commonly consumed dissolved in hot water or tea . The product is very popular throughout China, and used to remove toxic heat, soothe sore throat  and to treat influenza , measles, mumps, syphilis, or scarlet fever. It is also used for pharyngitis, laryngitis, erysipelas, and carbuncle, and to prevent hepatitis A, epidemic meningitis, cancer and inflammation . Possible minor side effects include allergic reactions and dizziness; only large dosages or long term usage can be toxic to the kidneys. These treatments have not generally been evaluated clinically.
 

 

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