condition mean min max Sterile Leaflet 3.022273333333333 0.0 5.75157 Fertile Leaflet with Sori 1.9899023333333334 0.168997 3.20558 Primary Rachis 0.71389 0.0 2.14167 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.282999 0.0 0.427919