condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.781101 0.504301 0.987386 Petiole 0.44093 0.0 1.32279 Crozier 0.005744699999999999 0.0 0.0172341 Rhizome 0.5288236666666667 0.222285 0.780739 Root 2.570584 0.968032 3.63884