condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 22.029783333333334 5.35985 36.8452 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0