condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.2074913333333335 0.455174 4.95908 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.16405633333333333 0.0 0.492169 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0