condition mean min max Sterile Leaflet 1.9955533333333333 0.0 4.62315 Fertile Leaflet with Sori 1.915606 0.884378 2.62057 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 3.16118 2.29988 4.14643 Rhizome 0.761867 0.445589 1.1047 Root 0.0 0.0 0.0