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 5.42091 4.32076 6.79887 Rhizome 0.1722331 0.0586633 0.357981 Root 0.118767 0.0 0.356301