condition mean min max Sterile Leaflet 1.6322366666666666 0.0 3.55936 Fertile Leaflet with Sori 0.8736216666666666 0.0 1.97479 Primary Rachis 2.758941 0.275677 7.03047 Petiole 0.41249800000000003 0.0 0.938462 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0