condition mean min max Sterile Leaflet 0.093192 0.0 0.279576 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 71.07456666666667 0.0 120.631