condition mean min max Sterile Leaflet 6.366833333333333 0.0 19.1005 Fertile Leaflet with Sori 0.6852733333333334 0.0 2.05582 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.111105 0.0 0.333315 Petiole 0.0 0.0 0.0 Crozier 0.09045500000000001 0.0 0.271365 Root 0.0 0.0 0.0