condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 1.0467266666666668 0.536146 2.03309 Petiole 0.92054 0.0 2.76162 Crozier 0.0 0.0 0.0 Rhizome 0.7541753333333333 0.11152 1.42594 Root 2.205602 0.669386 4.6705