condition mean min max Sterile Leaflet 1.0626916666666666 0.0 2.92928 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.08937866666666666 0.0 0.268136 Crozier 9.34393 0.0 19.8966 Rhizome 5.285003000000001 0.0 15.377 Root 0.228556 0.0 0.685668