condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.06815866666666666 0.0 0.204476 Rhizome 0.708916 0.0 1.58464 Root 11.937402 0.574236 31.4268