condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 9.79854 4.12571 15.3582 Root 0.18275666666666668 0.0 0.54827