condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 3.2142933333333334 0.0 5.12008 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.12089766666666667 0.0 0.242204 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0