condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.18514266666666668 0.0 0.555428 Rhizome 4.13628 0.0 8.46341 Root 0.0 0.0 0.0