condition mean min max Sterile Leaflet 0.275633 0.0 0.826899 Fertile Leaflet with Sori 0.6106533333333334 0.0 1.83196 Petiole 0.0 0.0 0.0 Crozier 5.81324 0.0 15.8655 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0