condition mean min max Sterile Leaflet 2.3726846666666668 0.607403 5.57006 Fertile Leaflet with Sori 1.3194403333333333 0.301721 3.07201 Primary Rachis 17.661917 0.0 52.3642 Secondary Rachis 12.784097000000001 0.0 38.161 Petiole 7.0903 0.0 21.2709 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0