condition mean min max Sterile Leaflet 0.148603 0.0 0.445809 Fertile Leaflet with Sori 0.437437 0.259847 0.792402 Petiole 0.0 0.0 0.0 Crozier 3.421087 0.520281 6.27353 Rhizome 0.4137633333333333 0.0 1.24129 Root 0.044268 0.0 0.132804