condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 8.64875 0.0 22.2793 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.25552033333333335 0.0 0.766561 Root 0.0 0.0 0.0