condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 18.634693333333335 7.93268 32.9806 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.09726800000000001 0.0 0.291804 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0