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 0.0109301 0.0 0.0327903 Rhizome 0.1467164 0.0 0.406197 Root 6.717774666666667 0.662236 18.7556