condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.020943410333333332 0.0 0.0624951 Rhizome 0.1411234 0.0 0.36013 Root 2.7042966666666666 0.0 8.11289