condition mean min max Sterile Leaflet 2.7585766666666665 0.0 8.27573 Fertile Leaflet with Sori 0.23119599999999998 0.0 0.693588 Primary Rachis 0.45935666666666664 0.0 1.37807 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0