Size and color of staminate- vs. pistillate-phase flowers.

<p>Flower size as measured by petal length and corolla diameter (A and B, respectively) and flower color as measured by anthocyanin concentration and pinkness index (C and D, respectively) in staminate- and pistillate-phase flowers of <i>S. officinalis</i> growing in shaded or sun-exposed plots in an experimental garden in 2012. Boxes represent the median and quartile ranges for each variable. Open circles represent values that lie between 1.5 and 3 box lengths from the end of the box. Different letters above each box indicate significant differences (α = 0.05).