condition mean min max Sterile Leaflet 4.0168219999999994 0.0 11.3944 Fertile Leaflet with Sori 0.29784700000000003 0.0 0.893541 Primary Rachis 0.08451533333333333 0.0 0.253546 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0