condition mean min max Sterile Frond 4.60939 3.51032 5.4713 Fertile Frond 3.786866666666667 0.0 9.81351 Young Stem with Root 4.613805 0.458065 7.79657 Mature Stem with Root 2.51362 1.34946 4.1548 Root 5.5965 0.0 14.2072