condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.9723566666666666 0.0 2.91707 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.196346 0.0 0.589038 Root 2.3406636666666665 0.520651 3.79828