condition mean min max Sterile Leaflet 3.054343333333333 0.0 6.74461 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.079655 0.0 0.238965 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.2779066666666667 0.0 0.83372