condition mean min max Sterile Frond 0.9393856666666667 0.0 2.33499 Fertile Frond 20.377470000000002 0.0 60.139 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.25605933333333336 0.0 0.768178 Root 0.0 0.0 0.0