condition mean min max Sterile Leaflet 0.5234166666666666 0.0 1.57025 Fertile Leaflet with Sori 6.7573 0.0 20.2719 Petiole 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0