condition mean min max Sterile Leaflet 3.7039333333333335 0.0 11.1118 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.189226 0.0 0.567678 Petiole 0.10615566666666666 0.0 0.318467 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0