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 2.906445 0.0 7.8947 Stolon 0.0 0.0 0.0 Stolon with Root 0.15245966666666666 0.0 0.457379