a resinous,astringent extract obtained from the leaves of a woody vine(Uncaria gambir) of Malaysia and Indonesia,used medicinally and in tanning and dyeing

 
  • 黑儿茶,棕儿茶从木质藤本植物(黑儿茶钩滕属)的枝叶中提取的含树脂的止血物质,产于马来西亚和印度尼西亚,用于医药、制革和印染
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