condition mean min max Sterile Leaflet 0.153309 0.0 0.459927 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.554237 0.0 0.88767 Rhizome 0.8538033333333334 0.0 1.51939 Root 9.771843333333333 0.0 27.9725