condition mean min max Sterile Leaflet 0.24529633333333334 0.0 0.735889 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.222127 0.0 0.666381 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 3.66784 0.0 6.25093