condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.8458633333333334 0.0 7.13586 Petiole 0.8036953333333333 0.0 1.43889 Crozier 3.205343 0.0 9.39222 Rhizome 2.18552 0.0 4.38819 Root 0.96034 0.0 1.78964