condition mean min max Sterile Frond 8.0228 0.0 24.0684 Fertile Frond 0.2434896666666667 0.0 0.730469 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