condition mean min max Sterile Frond 2.06833 0.0 3.81561 Fertile Frond 2.6891866666666666 2.14898 3.70627 Young Stem with Root 0.9743 0.0 1.57485 Mature Stem with Root 1.666194 0.485862 2.26488 Root 2.0199000000000003 0.0 4.42848