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 0.204461 0.0 0.391622 Stolon 0.0 0.0 0.0 Stolon with Root 2.3857066666666666 0.0 3.68536