condition mean min max Sterile Leaflet 0.123448 0.0 0.370344 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.07838099999999999 0.0 0.235143 Crozier 3.7348266666666667 1.89229 4.78953 Root 0.254512 0.0 0.763536