condition mean min max Sterile Leaflet 4.765727 0.0 13.9114 Fertile Leaflet with Sori 2.117138 0.369494 3.38043 Primary Rachis 0.0 0.0 0.0 Petiole 0.10432933333333333 0.0 0.312988 Crozier 0.37171 0.0 1.11513 Rhizome 0.0 0.0 0.0 Root 6.432433333333334 4.24538 10.342