condition mean min max Sterile Leaflet 2.416517333333333 0.638732 5.46743 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0078739 0.0 0.0236217 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0092851 0.0 0.0278553 Crozier 0.0 0.0 0.0 Root 0.09804646666666667 0.0 0.233874