condition mean min max Sterile Leaflet 2.4770596666666664 0.897069 4.63183 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.18971766666666667 0.0 0.569153 Rhizome 0.0 0.0 0.0 Root 0.09333200000000001 0.0 0.279996