condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 4.355593333333333 2.0674 7.52842 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.07796733333333333 0.0 0.123409 Petiole 0.0 0.0 0.0 Crozier 0.0702416 0.0 0.124712 Root 0.132011 0.0 0.251394