condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 2.2982066666666667 0.0 6.89462 Rhizome 0.03388666666666667 0.0 0.10166 Root 0.0 0.0 0.0