condition mean min max Sterile Leaflet 0.52907 0.0 1.58721 Fertile Leaflet with Sori 1.8555633333333332 0.0 3.37528 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 0.10540166666666667 0.0 0.316205