condition mean min max Sterile Frond 2.098121 0.952183 2.86414 Fertile Frond 2.2340299999999997 1.80471 2.45516 Young Stem with Root 3.269546666666667 2.44897 4.45131 Mature Stem with Root 2.2880866666666666 1.7593 2.6626 Root 1.290088 0.902024 1.86116