condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.466607 0.0 0.912207 Primary Rachis 0.07393066666666667 0.0 0.120843 Secondary Rachis 2.6782843333333335 0.426303 6.53617 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0