condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.017726233333333334 0.0 0.0371841 Primary Rachis 0.0 0.0 0.0 Petiole 2.4886 0.0 7.4658 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0