condition mean min max Sterile Leaflet 0.702322 0.0 1.92781 Fertile Leaflet with Sori 4.41231 3.4159 5.73792 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.21550333333333335 0.0 0.64651 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.100997 0.0 0.302991