condition mean min max Sterile Leaflet 0.0147876 0.0 0.0443628 Fertile Leaflet with Sori 0.1808204 0.0 0.455419 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.16513766666666665 0.0 0.495413 Root 3.8688844666666666 0.0 11.5437