condition mean min max Sterile Leaflet 1.5787183333333332 0.340469 3.83683 Fertile Leaflet with Sori 2.6981116666666667 0.0 7.42968 Primary Rachis 0.087161 0.0 0.261483 Petiole 0.104962 0.0 0.314886 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.229811 0.0 0.689433