condition mean min max Sterile Leaflet 2.8805440666666664 0.0121506 8.55247 Fertile Leaflet with Sori 0.0811505 0.0759573 0.0841231 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.22761246666666668 0.0863614 0.327939 Rhizome 0.0316486 0.0 0.0564063 Root 0.4774656666666667 0.227157 0.87695