condition mean min max Sterile Leaflet 2.1544233333333334 0.0 4.66743 Fertile Leaflet with Sori 1.99126 0.0 3.84919 Primary Rachis 2.43811 0.0 5.39538 Petiole 3.4748539999999997 0.324382 6.53349 Root 0.0 0.0 0.0