condition mean min max Sterile Leaflet 0.243295 0.0 0.729885 Fertile Leaflet with Sori 2.97078 0.0 5.90943 Primary Rachis 0.0 0.0 0.0 Petiole 0.14048733333333333 0.0 0.421462 Root 0.151357 0.0 0.454071