condition mean min max Sterile Leaflet 0.16662633333333335 0.0 0.499879 Fertile Leaflet with Sori 2.4467600000000003 1.25381 3.91617 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.5260893333333333 0.0 1.10519 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0