condition mean min max Sterile Leaflet 5.09659 0.0 11.8558 Fertile Leaflet with Sori 0.034369000000000004 0.0 0.103107 Primary Rachis 0.6579836666666667 0.110553 1.57543 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.08024266666666667 0.0 0.240728