Correlation of traits with environmental variables.

<p><i>r</i> values (Pearson) representing correlations between A) Sum Length and B) (Sum Area)^1/2 of accessions with latitude, longitude, altitude, mean annual temperature, mean annual precipitation, and NDVI. Correlation coefficients are given for accessions of all species under simulated shade and sun conditions. Scatter plots showing the positive correlations between C) Sum Length and D) (Sum Area)^1/2 with NDVI under simulated sun conditions. Significance of <i>r</i> values deviating from 0 is denoted by solid (p<0.05) and gray (p>0.05) fill. <i>S. arcanum</i>, <i>S. habrochaites</i>, and <i>S. pimpinellifolium</i> accessions are represented by gold, magenta, and navy, respectively.