Table 3: Factor loadings for the first two principal components from the morphological data matrix for S. altissima and S. gigantea.

TraitLoading on PC1Loading on PC2

Stem width0.500.04
Ramet height0.510.04
Leaf length0.47−0.22
Leaf width0.14−0.63
Teeth0.34−0.24
Water content−0.29−0.39
Trichomes0.340.58