condition mean min max Sterile Leaflet 0.5556526666666667 0.0 1.54538 Fertile Leaflet with Sori 2.25695 1.27328 3.76089 Primary Rachis 0.03411366666666667 0.0 0.102341 Secondary Rachis 0.1789131 0.0 0.438916 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0