condition mean min max Sterile Leaflet 0.3828133333333333 0.0 1.14844 Fertile Leaflet with Sori 3.8052900000000003 2.37603 6.00037 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 1.5183900000000001 0.0 4.55517 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.3636216666666667 0.0 0.583267