condition mean min max Sterile Leaflet 2.759926666666667 1.4066 5.14468 Fertile Leaflet with Sori 5.26849 1.163 11.0389 Petiole 0.17110799999999998 0.0 0.410371 Crozier 0.38566066666666665 0.0 0.887502 Rhizome 0.213794 0.17125 0.278944 Root 0.188401 0.0 0.286547