Boxplots expressing morphological variation between Anthyllis apennina (APE) and A. pulchella (PUL): stem height (mm), lower cauline leaf length (mm), terminal leaflet length in lower cauline leaf (mm), upper cauline leaf length (mm), terminal leaflet length in upper cauline leaf (mm), bract length (mm), bract lobe lenght (mm), standard length (mm), ratio bract length/standard length. Outlined central box depicts middle 50% of data, extending from 25th and 75th percentiles, and horizontal bar is the median. Ends of vertical lines (or “whiskers”) indicate minimum and maximum data values, unless outliers are present, in which case whiskers extend to a maximum of 1.5 times inter-quartile range. Circles indicate outliers.