condition mean min max Sterile Leaflet 0.19541999999999998 0.0 0.454246 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.15615700000000002 0.0 0.468471 Petiole 0.0 0.0 0.0 Crozier 0.040968 0.0 0.122904 Rhizome 0.09062933333333333 0.0 0.14628 Root 5.079653333333334 2.87993 8.30253