condition mean min max Sterile Leaflet 0.286005 0.0 0.530972 Fertile Leaflet with Sori 1.946203 0.663129 3.26836 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.5301086666666667 0.157927 1.01129 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 8.700174 0.686002 20.0704