condition mean min max Sterile Leaflet 0.2806863333333333 0.0 0.842059 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.31018799999999996 0.0 0.930564 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 2.12923 0.0 6.38769