condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 2.039362 0.783676 3.58273 Rhizome 0.348785 0.0 0.698443 Root 0.0 0.0 0.0