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 0.7967 0.0 2.3901 Crozier 0.0 0.0 0.0 Rhizome 18.895963666666667 0.698811 52.9181 Stolon 0.0 0.0 0.0 Stolon with Root 1.2391156666666667 0.504973 2.39437