condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 2.602796666666667 0.0 7.80839 Mature Stem with Root 0.23160433333333333 0.0 0.694813 Root 0.0 0.0 0.0