condition mean min max Sterile Frond 1.6330173333333333 0.0 4.61407 Fertile Frond 2.937456666666667 0.0 7.5062 Young Stem with Root 4.6512 0.0 13.9536 Mature Stem with Root 1.53312 0.321635 3.73629 Root 9.272260000000001 0.0 25.1016