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 0.26948666666666665 0.0 0.426748 Rhizome 8.085036666666667 5.42604 12.7083 Root 0.728569 0.0 1.72437