condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.5747696666666666 0.0 7.04456 Petiole 0.62053 0.0 1.86159 Crozier 1.1116 0.0 3.3348 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0