condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 4.005642333333333 0.890797 9.30977 Petiole 0.0 0.0 0.0 Crozier 0.0134568 0.0 0.0403704 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0