condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 6.553633333333334 0.0 19.6609 Primary Rachis 0.15088300000000002 0.0 0.452649 Secondary Rachis 1.7315733333333334 0.0 5.19472 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0