condition mean min max Sterile Leaflet 4.359016666666667 1.08803 8.58206 Fertile Leaflet with Sori 1.1828513333333333 0.346634 1.82312 Petiole 0.0 0.0 0.0 Crozier 1.150846 0.757719 1.8355 Rhizome 0.051569000000000004 0.0 0.154707 Root 0.0 0.0 0.0