condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.292475 0.0 0.441501 Primary Rachis 0.3599266666666667 0.0 1.07978 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.5064633333333334 0.0 1.51939 Root 3.03035 0.0 9.09105