condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.6988806666666667 0.299822 4.78808 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.23662933333333333 0.0 0.533481 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.07438399999999999 0.0 0.223152