condition mean min max Sterile Frond 2.683364 0.0 7.52625 Fertile Frond 1.855913 0.0 5.46758 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.09433599999999999 0.0 0.283008 Root 0.0 0.0 0.0