condition mean min max Sterile Leaflet 0.6430933333333334 0.0 1.92928 Fertile Leaflet with Sori 2.1387300000000002 0.0 3.66528 Primary Rachis 0.16792733333333335 0.0 0.310584 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0