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 0.06968566666666666 0.0 0.209057 Rhizome 0.0 0.0 0.0 Root 4.1634606666666665 0.0 12.0787