condition mean min max Sterile Leaflet 3.03539 2.40307 4.20907 Fertile Leaflet with Sori 4.110244 0.688262 6.72724 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 2.725195333333333 0.0 7.92878 Petiole 0.0 0.0 0.0 Crozier 0.18843866666666667 0.0 0.285212 Root 12.3739 11.265 14.2569