condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.055182666666666665 0.0 0.165548 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.051408 0.0 0.154224 Root 3.1564300000000003 0.0 8.78198