condition mean min max Sterile Leaflet 0.105559 0.0 0.316677 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 0.0 0.0 0.0 Rhizome 0.17605033333333334 0.0 0.528151 Root 5.602543333333333 0.0 8.72025