condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 2.0875529999999998 0.685739 2.91072 Petiole 1.0629136666666665 0.250962 2.20889 Crozier 0.240795 0.0 0.459416 Rhizome 0.0 0.0 0.0 Root 0.088439 0.0 0.265317