condition mean min max Sterile Leaflet 0.09580166666666667 0.0 0.287405 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0172547 0.0 0.0517641 Petiole 0.0175855 0.0 0.0527565 Crozier 0.0 0.0 0.0 Rhizome 0.781431 0.261684 1.54576 Root 2.9134966666666666 1.2729 4.5181