condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 10.8323 0.0 17.3046 Petiole 0.0 0.0 0.0 Crozier 0.03162673333333333 0.0 0.0948802 Rhizome 0.06031633333333333 0.0 0.180949 Root 0.0 0.0 0.0