condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.018016766666666666 0.0 0.0540503 Crozier 0.0 0.0 0.0 Rhizome 0.065812 0.0 0.197436 Root 7.948098 0.0 23.1375