condition mean min max Sterile Leaflet 2.67864 0.0 8.03592 Fertile Leaflet with Sori 0.30219833333333335 0.0 0.906595 Primary Rachis 1.60846 0.0 4.82538 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