condition mean min max Sterile Leaflet 0.27400266666666667 0.0 0.822008 Fertile Leaflet with Sori 4.648103333333333 2.70187 6.86683 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 0.0 0.0 0.0