condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.21137466666666668 0.0 0.634124 Rhizome 0.2876623333333333 0.0 0.862987 Root 5.1396906 0.0775838 15.0131