Figure 4

A. C. cassia’s trans-cinnamaldehyde content in various suitable habitats. HIG was the trans-cinnamaldehyde average content of high-suitable habitats (GX1-GX16 and GD1-GD8). MOD/LES was the trans-cinnamaldehyde average content of medium- and low-suitable habitats (YN1-YN5, HN, and HB). The columns having different uppercase letters are significantly different (p < 0.05). ** Very significant differences p < 0.01. B. OPLS-DA model of C. cassia from different geographical origins.