condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.011682999999999999 0.0 0.035049 Primary Rachis 17.1132 13.6031 23.9585 Petiole 4.794 0.0 14.382 Crozier 0.0047136 0.0 0.0141408 Rhizome 0.3829028 0.0425224 0.60848 Root 0.427627 0.120766 0.723955