condition mean min max Sterile Leaflet 3.1321046666666668 0.356864 7.16204 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.23608633333333331 0.0 0.708259 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0