condition mean min max Sterile Leaflet 2.1281743333333334 0.0 5.5163 Fertile Leaflet with Sori 0.41875666666666667 0.0 1.25627 Primary Rachis 1.4688100000000002 0.0 4.40643 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0