condition mean min max Sterile Leaflet 0.04739933333333333 0.0 0.142198 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.08407233333333335 0.0 0.252217 Root 4.622365 0.0 13.7323