condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 2.546931 0.0 7.38567 Rhizome 0.8005766666666667 0.0 2.40173 Root 0.0 0.0 0.0