condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 4.396436666666666 0.0 11.6897 Rhizome 0.11150633333333333 0.0 0.334519 Root 0.0 0.0 0.0