condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.145308 0.0 0.435924 Primary Rachis 1.7829139999999999 0.446842 3.82212 Petiole 1.13114 0.0 3.39342 Crozier 0.44383666666666666 0.0 1.33151 Rhizome 1.8418063333333334 0.684929 3.79847 Root 4.04275 0.0 8.63169