condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 1.5962233333333333 0.0 4.78867 Mature Stem with Root 2.34181 0.0 4.94803 Root 4.23275 0.0 9.59042