condition mean min max Sterile Frond 6.32304 2.53717 13.4156 Fertile Frond 7.2305399999999995 2.68652 15.6833 Young Stem with Root 5.149136666666667 1.94221 8.28367 Mature Stem with Root 8.516526666666667 2.62841 19.227 Root 4.79403 1.81774 8.28501