condition mean min max Sterile Frond 2.354033333333333 0.0 7.0621 Fertile Frond 1.7463199999999999 0.0 5.23896 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0