condition mean min max Sterile Leaflet 0.223225 0.0 0.669675 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 0.2635406666666667 0.0 0.790622 Rhizome 0.0 0.0 0.0 Root 3.650195 0.852385 6.77002