condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.1051594 0.0 0.243067 Rhizome 0.23261966666666667 0.0 0.697859 Root 6.630602 0.0 19.6465