condition mean min max Sterile Leaflet 0.14983266666666667 0.0 0.449498 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.230954 0.0 0.467757 Crozier 3.75829 2.39416 5.95181 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0