condition mean min max Sterile Leaflet 0.743738 0.0 1.57707 Fertile Leaflet with Sori 2.555743333333333 0.90638 4.63925 Petiole 0.0 0.0 0.0 Crozier 1.084339 0.0 2.60605 Rhizome 0.8615673333333334 0.0 2.01698 Root 0.0 0.0 0.0