Isatidis Radix root slices indago woad ban lan gen
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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