condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.5603923333333334 0.277326 0.835744 Petiole 0.0 0.0 0.0 Crozier 12.153966666666667 0.0 27.3291 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0