condition mean min max Sterile Leaflet 0.129264 0.0 0.204607 Fertile Leaflet with Sori 2.2807333333333335 0.0 6.8422 Primary Rachis 0.0 0.0 0.0 Petiole 0.205728 0.0 0.617184 Root 0.0 0.0 0.0