condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.57383 0.0 1.72149 Rhizome 1.6686666666666667 0.0 5.006 Root 2.009779 0.0 5.74589