condition mean min max Sterile Leaflet 0.080813 0.0 0.242439 Fertile Leaflet with Sori 1.268637 0.621441 1.78113 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 2.996855666666667 0.239669 8.23015 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0