condition mean min max Sterile Leaflet 2.57287 0.0 7.71861 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.08244166666666666 0.0 0.247325 Crozier 0.15318 0.0 0.45954 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0