condition mean min max Sterile Frond 5.144045666666667 0.0 15.157 Fertile Frond 9.1455 0.0 27.4365 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.7389076666666667 0.0 1.56526 Root 0.0 0.0 0.0