condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.40912333333333334 0.0 1.22737 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 4.455966666666667 0.0 13.3679 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0