condition mean min max Sterile Leaflet 0.4187166666666667 0.0 1.25615 Fertile Leaflet with Sori 2.85068 0.0 8.55204 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Root 0.0 0.0 0.0