condition mean min max Sterile Leaflet 0.012941166666666665 0.0 0.0388235 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 3.2060543333333333 0.893683 6.78522