condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 2.1581983333333334 0.633995 2.95627 Rhizome 0.28693033333333334 0.0 0.860791 Root 0.0 0.0 0.0