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 0.12893233333333334 0.071711 0.173488 Rhizome 0.0161736 0.0 0.0485208 Root 6.804283333333333 0.0 12.6502