condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.04720866666666667 0.0 0.141626 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.9125533333333333 0.0 2.73766 Root 2.18758 1.20733 2.70172