condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.214468 0.0 0.416487 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 10.434526666666667 7.79238 12.8891