condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.371526 0.155747 0.505468 Petiole 0.15048166666666665 0.0 0.451445 Crozier 0.0 0.0 0.0 Rhizome 0.8376206666666667 0.261535 1.27454 Root 2.117209 0.930607 3.36888