condition mean min max Sterile Leaflet 4.131221666666667 0.238569 11.9026 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.2577486666666667 0.0 0.773246 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0