condition mean min max Sterile Leaflet 0.031327966666666665 0.0 0.0939839 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 1.2443053333333332 0.658781 2.32353 Petiole 0.46027 0.0 1.38081 Crozier 0.0 0.0 0.0 Rhizome 0.693442 0.371735 0.911018 Root 2.2815719999999997 0.669386 3.94073