condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.3524533333333335 0.0 7.05736 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.37202 0.0 4.11606 Root 0.3878833333333333 0.0 0.941834