condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 1.354772 0.495496 2.52341 Petiole 0.302058 0.0 0.819594 Crozier 0.0 0.0 0.0 Rhizome 2.1244366666666665 0.39621 3.29579 Root 6.448336666666667 2.01715 11.6714