condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.30033733333333335 0.0 0.901012 Petiole 0.098205 0.0 0.294615 Crozier 0.0 0.0 0.0 Rhizome 0.562632 0.302647 0.838228 Root 2.3813233333333335 0.488618 6.12009