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Quick answer：Fengxian powder, also known as 'Chinese paint flower powder', is derived from the dried petals of the Chinese paint flower (Iris tectorum). It is used in traditional Chinese medicine and as a natural dye.
Quick answer：Fengxian powder, also known as 'Chinese paint flower powder', is derived from the dried petals of the Chinese paint flower (Iris tectorum). It is used in traditional Chinese medicine and as a natural dye.