condition mean min max Sterile Leaflet 1.310393 0.0 3.18049 Fertile Leaflet with Sori 0.12044633333333334 0.0 0.361339 Primary Rachis 2.386869 0.0 6.43364 Petiole 0.42081233333333334 0.0 0.910947 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0