condition mean min max Sterile Leaflet 0.0 0.0 0.0 Mature Sterile Leaflet 2.505036666666667 0.0 7.51511 Fertile Leaflet with Sori 0.391006 0.0 0.683238 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