Figure 5 | Scientific Reports

Figure 5

From: Discrimination of geographical origin of cultivated Polygala tenuifolia based on multi-element fingerprinting by inductively coupled plasma mass spectrometry

Figure 5

Discrimination analysis for 41 cultivated P. tenuifolia samples from different major polygala-producing origin. (A) Scatter diagram of cultivated P. tenuifolia samples from four different provinces (Shaanxi, Hebei, Henan, and Shanxi); (B) Scatter diagram of cultivated P. tenuifolia samples from Shanxi province (southern, northern, and central regions). analyzed according to different regions obtained through the two discriminant functions after discriminant analysis. (C) Correlation chart between the selected variables and the discriminant functions for all cultivated P. tenuifolia samples; (D) Correlation chart between the selected variables and the discriminant functions for Shanxi cultivated P. tenuifolia samples.

Back to article page