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PCA2 results based on Pearson correlation matrix between Achillea millefolium total phenolic acids and flavonoids in plant organs and the two principal component scores.
| Variables | Inflorescences | Leaves | Stems | |||
|---|---|---|---|---|---|---|
| PC1 | PC2 | PC1 | PC2 | PC1 | PC2 | |
| Phenolic acids | −0.92 | 0.16 | −0.90 | 0.21 | −0.93 | 0.19 |
| Flavonoids | −0.36 | −0.88 | −0.85 | 0.02 | −0.75 | −0.28 |
