condition mean min max Sterile Leaflet 1.3768820000000002 0.206313 3.26792 Fertile Leaflet with Sori 0.5514543333333333 0.0 1.45382 Primary Rachis 0.06575633333333333 0.0 0.197269 Petiole 0.0 0.0 0.0 Crozier 9.749319999999999 3.29236 15.7198 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0