condition mean min max Sterile Leaflet 0.047557999999999996 0.0 0.142674 Fertile Leaflet with Sori 0.09043433333333332 0.0 0.139311 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.253787 0.161936 0.411419 Rhizome 0.053302999999999996 0.0 0.159909 Root 4.38678 1.25509 7.50709