condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.061618 0.0 0.184854 Petiole 0.0 0.0 0.0 Root 2.4448866666666667 0.0 7.33466