condition mean min max Sterile Leaflet 0.325459 0.0 0.579993 Fertile Leaflet with Sori 0.5697876666666667 0.12688 0.898583 Petiole 0.55858 0.485066 0.691205 Rhizome 2.2612973333333333 0.132536 6.02216 Root 1.896915 0.513035 3.67426