condition mean min max Sterile Frond 16.605453333333333 8.72706 29.4056 Fertile Frond 14.23879 9.75007 21.9723 Young Stem with Root 7.0191 1.2002 11.8685 Mature Stem with Root 14.58793 4.91569 30.872 Root 4.042840666666667 0.569072 9.119