condition mean min max Sterile Leaflet 0.20530400000000001 0.0 0.615912 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 0.17143866666666666 0.0 0.514316 Root 3.111369333333333 0.227628 5.80277