condition mean min max Sterile Leaflet 1.4630400000000001 0.0 4.38912 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 2.4206766666666666 0.0 7.26203 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.22383833333333333 0.0 0.671515