condition mean min max Sterile Leaflet 0.10858133333333332 0.0 0.325744 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 3.6841333333333335 0.0 11.0524