condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.12032266666666667 0.0 0.360968 Rhizome 0.0 0.0 0.0 Root 5.295648 0.874994 8.58442