condition mean min max Sterile Leaflet 0.227104 0.0 0.681312 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 2.0385733333333333 0.0 6.11572 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.17781933333333333 0.0 0.533458