condition mean min max Sterile Leaflet 0.0 0.0 0.0 Mature Sterile Leaflet 2.3768533333333335 0.0 7.13056 Fertile Leaflet with Sori 0.22375966666666666 0.0 0.349613 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