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 3.551129 0.100378 10.3088 Root 0.07263933333333333 0.0 0.217918