condition mean min max Sterile Frond 15.517523333333333 1.89723 41.4613 Fertile Frond 18.06131 3.73427 45.1032 Young Stem with Root 16.32534 1.64644 44.9892 Mature Stem with Root 12.48487 1.8024 31.5041 Root 18.513283333333334 2.28696 45.7662