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 3.9360420666666665 0.0805862 10.0657 Root 0.5093483333333333 0.0 1.31186