condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.053738 0.0 0.161214 Rhizome 0.0 0.0 0.0 Root 3.19748 0.0 9.59244