condition mean min max Sterile Leaflet 0.33089433333333335 0.0 0.992683 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 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 6.45357 5.37434 7.49964