condition mean min max Sterile Leaflet 0.050866 0.0 0.152598 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.3556516666666667 0.0 0.790475 Secondary Rachis 0.0 0.0 0.0 Petiole 2.1166323333333334 0.574127 4.35902 Rhizome 0.383631 0.0 0.838433 Root 0.0 0.0 0.0