condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 3.3469366666666667 0.0 8.41802 Young Stem with Root 0.09547 0.0 0.28641 Mature Stem with Root 0.19553600000000002 0.0 0.325732 Root 0.37037366666666666 0.0 0.567504