 These parts are sold in areas where these beliefs are practiced – mostly Asian countries particularly Vietnam and China – on the black market.Traditional Chinese medicine often incorporates ingredients from all parts of plants, the leaf, stem, flower, root, and also ingredients from animals and minerals.The use of parts of endangered species (such as seahorses, rhinoceros horns, binturong and tiger bones and claws) has created controversy and resulted in a black market of poachers.