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 0.104219 0.0 0.312657 Crozier 0.0 0.0 0.0 Rhizome 5.007666666666666 0.0 15.023 Stolon 0.0 0.0 0.0 Stolon with Root 0.0 0.0 0.0