condition mean min max Sterile Frond 4.96169 0.0 9.74256 Fertile Frond 3.593560333333333 0.501611 7.50766 Young Stem with Root 2.9783690000000003 0.309717 5.67428 Mature Stem with Root 3.3233166666666665 0.67913 5.67477 Root 3.74079 0.0 5.65571