condition mean min max Sterile Leaflet 0.0 0.0 0.0 Mature Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 1.980747 0.0 5.17528 Stolon 0.0 0.0 0.0 Stolon with Root 0.08801633333333332 0.0 0.264049