condition mean min max Sterile Leaflet 2.5973333333333333 0.0 7.792 Fertile Leaflet with Sori 0.14902633333333334 0.0 0.447079 Primary Rachis 0.079822 0.0 0.239466 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0