condition mean min max Sterile Leaflet 2.0130803333333334 0.17168 5.21407 Fertile Leaflet with Sori 0.10072133333333333 0.0 0.302164 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0