condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.320771 0.0 0.484658 Primary Rachis 0.552703 0.0 0.893684 Petiole 0.50273 0.0 1.50819 Crozier 0.29589 0.0 0.88767 Rhizome 3.42713 1.38936 6.83724 Root 2.801956666666667 0.0 7.3986