Pharmacopoeial standards for crude drugs are established based on analysis of authenticated specimens which should be representative of the quality of material traditionally specified in systems of traditional medicine from species’ geographical origin. This reflects the ‘geo-authentic’ material that corresponds to traditional ecological and medical knowledge. In cases where specimens are obtained from cultivation outside of the species origin, this ‘authenticated’ material will not be ‘geo-authentic’.
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Josef A. Brinckmann (2015) studied this question.
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