condition mean min max Sterile Leaflet 0.63874 0.0 1.91622 Fertile Leaflet with Sori 0.41779000000000005 0.0 1.25337 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.08765966666666668 0.0 0.262979 Root 2.247857 0.357651 4.00032