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 9.15757 0.0 21.7691 Stolon 0.0 0.0 0.0 Stolon with Root 1.7853383333333332 0.567295 2.64727