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Table 2 Eigenvector for principal component analysis for the 11 variables in the first four components analyzed for the leaf traits of the 52 species of Asteraceae at the REPSA, Mexico

From: Meso- or xeromorphic? Foliar characters of Asteraceae in a xeric scrub of Mexico

Characters Prin 1 Prin 2 Prin 3 Prin 4
Variation explained (%) 28.48 17.11 13.15 10.28
Eigenvalue 3.42 2.05 1.48 1.23
Lamina size −0.127 0.332 0.455 −0.664
Specific leaf area −0.216 −0.176 0.029 0.489
Sclerophyll index −0.197 0.332 0.455 −0.066
Lamina thickness −0.144 −0.134 0.575 −0.024
Cuticle thickness −0.016 0.294 −0.058 −0.430
Abaxial epidermis height 0.426 0.059 0.278 0.127
Stomatal density −0.159 0.518 −0.137 0.214
Guard cell length 0.281 −0.487 0.133 −0.195
Mesophyll thickness 0.510 0.075 0.054 0.142
Palisade thickness 0.216 0.455 0.067 0.204
Spongy thickness 0.138 −0.105 −0.524 0.269