condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 4.14037 2.50158 5.90872 Primary Rachis 0.0 0.0 0.0 Petiole 0.04997733333333334 0.0 0.149932 Crozier 0.09018566666666666 0.0 0.270557 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0