condition mean min max Sterile Leaflet 0.038492 0.0 0.115476 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.6953913333333334 0.107801 1.53835 Petiole 0.45065380000000005 0.0 1.3198 Crozier 2.3752816666666665 0.130195 3.68017 Rhizome 0.0044824999999999995 0.0 0.0134475 Root 0.0 0.0 0.0