condition mean min max Sterile Leaflet 2.98576 0.0 7.76467 Fertile Leaflet with Sori 1.6901599999999999 1.35418 1.9764 Primary Rachis 0.293526 0.10886 0.624261 Petiole 0.2918612666666667 0.0 0.787738 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0