condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 1.0708133333333334 0.0 2.75216 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 1.0840393333333334 0.357025 2.11407 Root 2.44096 0.0 4.44347