condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 7.1982 0.0 12.1926 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.24503833333333333 0.0 0.735115 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0