condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.092109 0.0 0.276327 Primary Rachis 2.4393966666666667 0.0 7.31819 Petiole 0.3724733333333334 0.0 1.11742 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0