condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.43984266666666666 0.0 1.05257 Primary Rachis 0.0 0.0 0.0 Petiole 0.10084866666666666 0.0 0.302546 Crozier 4.30029 2.89862 6.06775 Rhizome 0.291324 0.0 0.615322 Root 0.0 0.0 0.0