condition mean min max Sterile Leaflet 29.759333333333334 0.0 89.278 Fertile Leaflet with Sori 0.041548 0.0 0.124644 Primary Rachis 0.032468000000000004 0.0 0.097404 Petiole 0.0 0.0 0.0 Crozier 0.5640270000000001 0.0 1.33366 Rhizome 0.06681966666666667 0.0 0.200459 Root 0.0 0.0 0.0