condition mean min max Sterile Leaflet 1.1721366666666666 0.226828 2.971 Fertile Leaflet with Sori 2.7206596666666667 0.272789 6.4781 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.0157365 0.0 0.0472095 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0