condition mean min max Sterile Leaflet 0.10477233333333334 0.0 0.314317 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.319247 0.0 0.957741 Petiole 0.0 0.0 0.0 Root 11.546486666666667 0.0 28.5555