condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.065257 0.0 0.195771 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 3.603566666666667 0.0 10.8107 Root 0.0 0.0 0.0