condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.445512 0.0 1.11714 Young Stem with Root 28.5715 0.0 43.2684 Mature Stem with Root 0.8931166666666667 0.0 2.67935 Root 0.4883423333333333 0.0 0.841267