condition mean min max Sterile Leaflet 0.152526 0.0 0.241963 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Root 2.5525066666666665 0.0 7.65752