condition mean min max Sterile Frond 5.843846666666667 4.94699 6.76543 Fertile Frond 8.64629 6.03148 13.2012 Young Stem with Root 13.195160000000001 6.61798 20.3626 Mature Stem with Root 9.07489 7.13736 12.898 Root 10.425493333333334 7.71078 12.0086