condition mean min max Sterile Leaflet 0.295145 0.0 0.885435 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.278174 0.0 0.834522 Crozier 0.25718799999999997 0.0 0.402518 Rhizome 0.11956833333333333 0.0 0.358705 Root 4.3187 0.0 9.54585