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 0.10150466666666667 0.0 0.304514 Rhizome 1.0019116666666665 0.11152 2.53773 Root 6.379578 0.176154 16.4084