condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.086796 0.0 0.260388 Petiole 0.09967733333333334 0.0 0.299032 Crozier 0.0 0.0 0.0 Rhizome 0.37170333333333333 0.0 1.11511 Root 5.398968 0.246484 9.2116