condition mean min max Sterile Leaflet 2.2162343333333334 0.284397 5.60979 Fertile Leaflet with Sori 2.95488 1.07349 5.67931 Petiole 0.0 0.0 0.0 Crozier 0.27229566666666666 0.0 0.816887 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0