condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.218501 0.0 0.356051 Primary Rachis 0.21765566666666666 0.0 0.652967 Petiole 0.0 0.0 0.0 Crozier 3.6302733333333337 2.62896 4.26911 Rhizome 0.59741 0.0 1.79223 Root 0.0 0.0 0.0