condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.7035333333333332 0.0 2.1106 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.8967799999999997 0.0 10.53 Root 0.0 0.0 0.0