condition mean min max Sterile Frond 3.7609733333333333 1.26261 6.14307 Fertile Frond 3.2972033333333335 1.54709 5.88811 Young Stem with Root 1.8324829999999999 0.0 4.78867 Mature Stem with Root 0.51935 0.0 1.55805 Root 0.73996 0.0 2.21988