condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.13295366666666666 0.0 0.234559 Primary Rachis 0.0 0.0 0.0 Petiole 3.1397 0.0 9.4191 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0