condition mean min max Sterile Leaflet 0.49653433333333336 0.310472 0.867036 Mature Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.87649 0.0 8.62947 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Stolon 0.0 0.0 0.0 Stolon with Root 0.0 0.0 0.0