condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.758851 0.24169 1.50675 Rhizome 5.179143333333333 1.43887 9.82287 Root 0.0 0.0 0.0