condition mean min max Sterile Leaflet 0.4460363333333333 0.0 0.680707 Fertile Leaflet with Sori 2.60235 1.06227 3.86108 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.8731843333333333 0.344853 1.16598 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.074486 0.0 0.223458