condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.306027 0.0 0.918081 Secondary Rachis 0.066703 0.0 0.200109 Petiole 0.048449 0.0 0.145347 Crozier 0.0 0.0 0.0 Root 4.903696666666667 2.83839 6.04481