condition mean min max Sterile Leaflet 3.401037666666667 0.252496 9.47348 Fertile Leaflet with Sori 0.15006466666666665 0.0 0.450194 Petiole 0.0 0.0 0.0 Crozier 0.43206 0.224135 0.831587 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0