Comparative metabolomics reveals organ-specific discrepancy in TCMSP-predicted bioactive ingredients between two geographically distinct regions of <i>Rehmannia chingii</i>

These findings highlight the critical role of geographic and organ-specific factors in determining the metabolic profiles of <i>R. chingii</i>, thereby advancing our understanding of its medicinal value and providing a theoretical basis for the rational exploitation and utilization of its medicinal resources.