condition mean min max Sterile Leaflet 0.18371216666666665 0.0876525 0.241749 Fertile Leaflet with Sori 4.0167823333333335 0.847997 9.36551 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.13692433333333334 0.0 0.410773 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.010724699999999998 0.0 0.0321741