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 0.06633366666666667 0.0 0.199001 Rhizome 0.22500466666666666 0.0 0.485167 Root 8.60737 4.57856 16.4409