condition mean min max Sterile Leaflet 0.201761 0.0 0.33245 Fertile Leaflet with Sori 3.4479333333333333 1.20164 7.66259 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 2.105682 0.231822 5.40977 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.644094 0.378931 0.889039