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 0.020467366666666667 0.0 0.0614021 Rhizome 3.631598 0.0 10.5628 Root 0.333791 0.0 0.8352