condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.3230500000000003 0.0 9.96915 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.15967433333333333 0.0 0.479023 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0