condition mean min max Sterile Leaflet 0.017584333333333334 0.0 0.052753 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 0.0 0.0 0.0 Rhizome 0.095126 0.0 0.285378 Root 8.248825 0.0 24.1723