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 0.36527000000000004 0.0 0.836941 Rhizome 0.07743666666666667 0.0 0.23231 Root 9.3652 0.0 16.4423