condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.162731 0.0 0.488193 Rhizome 0.166505 0.0 0.499515 Root 7.04846 4.33209 8.42059