condition mean min max Sterile Frond 0.06305733333333334 0.0 0.189172 Fertile Frond 0.012525733333333332 0.0 0.0375772 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.912839 0.10781 8.48016 Root 0.157579 0.0 0.326528