condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 3.4419086666666665 0.777946 7.61247 Petiole 0.5380366666666666 0.0 1.61411 Crozier 0.0 0.0 0.0 Rhizome 1.747198 0.588264 2.74084 Root 4.793039 0.747027 7.45741