condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 2.0594313333333334 0.992914 3.97065 Rhizome 0.129076 0.0 0.387228 Root 0.0 0.0 0.0