condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.023197633333333332 0.0 0.0695929 Mature Stem with Root 0.11183033333333332 0.0 0.335491 Root 6.7913 0.0 20.3739