condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.16777633333333333 0.0 0.503329 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.9047433333333332 0.0 5.71423 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0