condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.3069981 0.0176897 0.840897 Primary Rachis 0.0 0.0 0.0 Petiole 3.2395833333333335 0.0 9.71875 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0075322 0.0 0.0225966