condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0286791 0.0178854 0.044094 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.04129996666666667 0.0 0.104497 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 4.340415666666667 0.0 12.8399