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 0.043893999999999996 0.0 0.131682 Rhizome 0.26452400000000004 0.0 0.793572 Root 2.9698496666666667 0.0 8.73203