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 0.0 0.0 0.0 Crozier 2.87099 2.02455 3.60968 Rhizome 0.4295153333333333 0.0 0.645582 Root 0.0 0.0 0.0