condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.18367433333333336 0.0 0.551023 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 2.3152933333333334 0.0 6.94588 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0