condition mean min max Sterile Leaflet 0.044641999999999994 0.0 0.133926 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 6.334506666666667 1.46702 8.90923