condition mean min max Sterile Leaflet 0.10934833333333333 0.0 0.328045 Fertile Leaflet with Sori 8.048456666666667 6.00718 10.5208 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 1.04873 0.0 3.14619 Root 0.0 0.0 0.0