condition mean min max Sterile Leaflet 0.17365766666666668 0.0 0.520973 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 11.25443 4.19339 15.1223 Rhizome 0.451432 0.0 1.13299 Root 0.5964543333333333 0.0 1.57315