condition mean min max Sterile Leaflet 3.1095550000000003 0.0 8.59707 Fertile Leaflet with Sori 0.11048466666666668 0.0 0.331454 Primary Rachis 0.0 0.0 0.0 Petiole 0.20490366666666668 0.0 0.614711 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0