condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 13.063456666666667 0.0 35.374 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0268978 0.0 0.0806934 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0