condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.01705306666666667 0.0 0.0511592 Crozier 2.3282 0.81767 5.08843 Rhizome 0.0896601 0.0 0.225003 Root 0.0 0.0 0.0