condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.19533266666666668 0.0 0.585998 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 12.443436666666667 0.0 36.2376