condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.2976623333333333 0.0 0.892987 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.2818696666666667 0.0 0.845609 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 6.902981 0.698963 16.0282