condition mean min max Sterile Leaflet 0.18638433333333335 0.0 0.559153 Fertile Leaflet with Sori 0.087156 0.0 0.261468 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 3.8295666666666666 0.0 11.4887