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 0.006467566666666666 0.0 0.0194027 Rhizome 17.4652 0.0 31.905 Root 2.8616340000000005 0.0 8.2146