condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.3187196666666667 0.0 0.956159 Petiole 0.0 0.0 0.0 Root 2.51944 0.0 7.55832