condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 1.926402 0.363506 3.22907 Primary Rachis 0.22020766666666666 0.0 0.462035 Petiole 0.0 0.0 0.0 Crozier 1.0734513333333333 0.397384 1.45786 Rhizome 0.132958 0.0 0.215826 Root 0.0 0.0 0.0