condition mean min max Sterile Leaflet 0.388801 0.0 0.766907 Fertile Leaflet with Sori 0.8684026666666667 0.432217 1.6464 Petiole 0.0 0.0 0.0 Crozier 3.1227986666666667 0.174046 6.23308 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0