condition mean min max Sterile Leaflet 0.5331980000000001 0.177575 0.791779 Fertile Leaflet with Sori 0.387614 0.192671 0.770435 Primary Rachis 2.3163869999999998 0.959821 4.16313 Petiole 1.350819 0.472169 2.8472 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0