condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.085028 0.0 0.128255 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.20272766666666667 0.0 0.608183 Root 18.75643 7.21829 31.6534