condition mean min max Sterile Leaflet 2.5362256666666667 0.410207 5.36015 Fertile Leaflet with Sori 0.747948 0.445942 1.33743 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0