condition mean min max Sterile Leaflet 2.6795899999999997 0.0 8.03877 Fertile Leaflet with Sori 0.5430433333333333 0.0 1.62913 Primary Rachis 0.32929633333333336 0.0 0.987889 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0