condition mean min max Sterile Leaflet 0.5762343333333333 0.0 1.50299 Fertile Leaflet with Sori 6.317658666666667 0.254286 17.5224 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 2.0562841 0.0289713 5.94583 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0