condition mean min max Sterile Leaflet 0.10503533333333333 0.0 0.315106 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.114294 0.0 0.342882 Petiole 0.0 0.0 0.0 Crozier 4.80575 1.02194 6.8718 Rhizome 0.0 0.0 0.0 Root 0.2603256666666667 0.0 0.780977