condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.737024 0.245774 1.56487 Petiole 0.232336 0.0 0.697008 Crozier 0.0 0.0 0.0 Rhizome 0.4560909666666667 0.0893529 0.69789 Root 2.00616 1.12873 2.6089