condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.04995533333333333 0.0 0.149866 Crozier 5.70373 2.60489 11.1986 Rhizome 0.716428 0.0 1.97753 Root 0.0 0.0 0.0