condition mean min max Sterile Leaflet 0.149121 0.0 0.321742 Fertile Leaflet with Sori 0.151511 0.130998 0.172837 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 3.1446566666666667 2.42858 4.09306 Root 0.052453 0.0 0.157359