condition mean min max Sterile Leaflet 0.10045033333333332 0.0 0.301351 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.09436699999999999 0.0 0.283101 Root 3.21894 1.43754 6.29299