A green vegetable dye from China, obtained from one or more species in the genus Rhamnus- probably Rhamnus globosa (syn. Rhamnus chlorophora), but Rhamnus utilis, as well as a mixture of Rhamnus davurica (or "Rhamnus dahurica") and Rhamnus globosa (as Rhamnus tinctoria) have also been given as the true source.
Related dictionary entries include locao, rhubarb, madder, rapini, munjeet, myrobolan.
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