condition mean min max Sterile Leaflet 0.0276581 0.0 0.055751 Fertile Leaflet with Sori 0.0540069 0.0 0.135879 Petiole 0.08081333333333333 0.0 0.24244 Rhizome 2.3561223333333334 0.828911 5.24733 Root 0.7678119999999999 0.311926 1.55287