Fig. 3. Partial least squares-discriminant analysis (PLS-DA) score (A-C) and loading (D-F) plots derived from the HPLC data, demonstrating the separation between leaves from Panax ginseng (Chinese origin) and P. ginseng (Korean origin) (A,D), P. quinquefolius and P. ginseng (Chinese origin) (B,E), and P. quinquefolius and P. ginseng (Korean origin) (C,F). ● P. quinquefolius, △ P. ginseng (Chinese origin), ■ P. ginseng (Korean origin).