condition mean min max Sterile Leaflet 0.253054 0.0 0.759162 Fertile Leaflet with Sori 15.373573333333333 0.19422 33.8215 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.06945133333333334 0.0 0.208354