condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.618286 0.0 1.50169 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.49470000000000003 0.0 1.21059 Root 2.5049336666666666 0.267631 3.90894