Table 2 in Resurrection of Stipa tremula and taxonomy of the high-alpine species from the Stipa purpurea complex (Poaceae, Pooideae)

Table 2. Results of the Principal Component Analysis (PCA) of the Stipa purpurea complex, based on seven morphological characters (the highest factor loadings are in bold); one-way ANOVA with F and p values for characters with normal distribution and Kruskal-Wallis test with H and p values for characters with non-normal distribution (the highest F/H values are in bold); the post-hoc tests (Tukey’s HSD for characters with normal distribution and multiple comparison tests for characters with non-normal distribution): + - significant, p <0.05, ns - not significant (abbreviations: Stipa purpurea - pur, S. tremula - tre, S. arenosa - are). For character abbreviations, see Table 1.
CharacterPC1PC2PC3F / H * valuep valuepost-hoc testpur-trepur-aretre-areAL- 0.790.490.1835.65*<0.05+ns+CL- 0.750.510.2850.10<0.05+++AwL- 0.730.44-0.4423.81<0.05+++LCL-0.69-0.57-0.1829.92<0.05++nsLVL- 0.74-0.570.0697.55<0.05+++LG- 0.860.14-0.1144.97 *<0.05+ns+SHL- 0.78-0.500.1773.26 *<0.05+ns+Percent variation (%)59.1723.405.66No. of significant differences746