condition mean min max Sterile Leaflet 0.22237266666666666 0.0 0.667118 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 3.816458 0.319244 6.32453 Rhizome 0.0 0.0 0.0 Root 0.313115 0.0 0.939345