condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.18023033333333335 0.0 0.540691 Mature Stem with Root 0.17976833333333334 0.0 0.539305 Root 4.279344 0.0 12.1061