condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.43862 0.0 5.22047 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.6282523333333333 0.0 1.55557 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0