condition mean min max Sterile Leaflet 5.355203333333334 2.31109 8.24268 Fertile Leaflet with Sori 3.657913 0.392899 6.34481 Primary Rachis 1.7317150000000001 0.0 4.41302 Petiole 0.64563 0.0 1.93689 Root 0.9886383333333333 0.0 2.13618