condition mean min max Sterile Leaflet 0.10844666666666668 0.0 0.32534 Fertile Leaflet with Sori 0.18326333333333333 0.0 0.54979 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 4.579859 0.327237 10.7631