condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.103396 0.0 0.310188 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.10098866666666667 0.0 0.302966 Root 4.4922390000000005 0.532307 11.7795