condition mean min max Sterile Leaflet 0.06088433333333334 0.0 0.182653 Fertile Leaflet with Sori 3.835406 0.338128 9.98421 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