condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.03485666666666667 0.0 0.10457 Primary Rachis 0.026921200000000003 0.0 0.0807636 Petiole 0.032545366666666666 0.0 0.0976361 Crozier 0.0 0.0 0.0 Rhizome 0.08564200000000001 0.0 0.134168 Root 3.319805 0.477325 6.67133