condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.181713333333333 0.0 6.54514 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.7404833333333333 0.0 2.22145 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0