condition mean min max Sterile Leaflet 0.28512233333333337 0.0 0.631963 Fertile Leaflet with Sori 0.13642633333333334 0.0 0.409279 Primary Rachis 2.3224899999999997 0.0 6.96747 Petiole 0.40941299999999997 0.0 0.83854 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.094544 0.0 0.283632