condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.051893999999999996 0.0 0.155682 Crozier 0.0 0.0 0.0 Rhizome 8.2038 0.0 24.6114 Root 0.8432876666666668 0.0 2.22095