condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.2023200666666667 0.0 0.597747 Secondary Rachis 0.10779300000000001 0.0 0.323379 Petiole 0.0174937 0.0 0.0524811 Crozier 2.8896633333333335 2.33929 3.48742 Root 0.533139 0.495955 0.561606