condition mean min max Sterile Leaflet 0.0061867 0.0 0.0185601 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 0.0 0.0 0.0 Rhizome 0.09580633333333333 0.0 0.287419 Root 5.5489766666666664 0.0 13.0453