condition mean min max Sterile Frond 12.319003 0.0 36.7089 Fertile Frond 14.727669666666667 0.0 43.89 Young Stem with Root 16.773129 0.0 50.0478 Mature Stem with Root 10.61011 0.0 30.3393 Root 34.785611333333335 0.37612 103.464