condition mean min max Sterile Leaflet 2.9168256666666665 0.0 8.29055 Fertile Leaflet with Sori 0.44154 0.0 1.32462 Primary Rachis 0.47990333333333335 0.0 1.43971 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