condition mean min max Sterile Leaflet 2.1513233333333335 0.0 6.45397 Fertile Leaflet with Sori 0.06964933333333333 0.0 0.208948 Primary Rachis 0.116413 0.0 0.349239 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0