condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.483969666666667 0.0 10.2691 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.024396233333333333 0.0 0.0731887 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0