condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 8.3898 0.0 25.1694 Young Stem with Root 0.189025 0.0 0.567075 Mature Stem with Root 0.5038166666666667 0.0 0.832582 Root 1.873105 0.942795 3.32041