condition mean min max Sterile Frond 1.012559 0.0 2.64598 Fertile Frond 1.9738483333333332 0.0 5.23335 Young Stem with Root 1.0629433333333334 0.0 3.18883 Mature Stem with Root 0.6174109999999999 0.0 1.05558 Root 2.6915899999999997 0.0 8.07477