condition mean min max Sterile Leaflet 2.8284533333333335 0.0 8.48536 Fertile Leaflet with Sori 0.542263 0.0 1.22185 Primary Rachis 0.43906333333333336 0.0 1.31719 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