condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.30930799999999997 0.0 0.467997 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.9939816666666667 0.366684 1.81195 Root 86.96638999999999 3.26891 252.295