condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.035562 0.0 0.106686 Petiole 0.10258533333333333 0.0 0.184539 Crozier 0.0 0.0 0.0 Rhizome 0.262961 0.0 0.736693 Root 4.91784 0.0 14.6385