condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.420886 0.0 0.970692 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.096611 0.0 0.289833 Crozier 0.19842066666666666 0.0 0.306594 Root 40.2001 3.04582 113.069