condition mean min max Sterile Leaflet 0.3294953333333333 0.0 0.988486 Fertile Leaflet with Sori 0.046426999999999996 0.0 0.139281 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 5.7662700000000005 4.43508 6.79398 Rhizome 0.035776999999999996 0.0 0.107331 Root 0.0 0.0 0.0