condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 3.0722799999999997 0.0 9.21684 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.72172 0.0 6.07453 Root 1.5915166666666667 0.0 3.5523