condition mean min max Sterile Leaflet 0.020394533333333333 0.0 0.0611836 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 0.0194935 0.0 0.0584805 Root 3.2881443333333333 0.234563 7.97257