condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0137293 0.0 0.0411879 Mature Stem with Root 4.584424 0.0 13.2643 Root 4.5164 0.0 13.5492