condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.8664493333333336 0.0 8.28485 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.8085966666666667 0.0 2.42579 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0