condition mean min max Sterile Frond 2.846029333333333 0.268878 7.65593 Fertile Frond 0.5911583333333333 0.0 0.967099 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.1635335 0.0 0.437801 Root 0.0288158 0.0 0.0474795