condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.26603733333333335 0.0 0.798112 Mature Stem with Root 18.15003 0.0 50.3769 Root 1.5450469999999998 0.0 3.99578