condition mean min max Sterile Leaflet 0.043207666666666665 0.0 0.129623 Fertile Leaflet with Sori 0.03996 0.0 0.11988 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.13432 0.0 0.309065 Root 2.918803 0.366159 4.91298