condition mean min max Sterile Leaflet 3.1127923333333336 0.0 8.48436 Fertile Leaflet with Sori 1.127822 0.275713 2.8319 Primary Rachis 0.31229066666666666 0.0 0.662409 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