condition mean min max Sterile Frond 4.851293 0.420869 13.1637 Fertile Frond 3.75716 0.490676 9.79824 Young Stem with Root 1.9110506666666667 0.35439 4.58065 Mature Stem with Root 3.6331239999999996 0.899642 8.96103 Root 2.221577 0.0 6.02537