condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.2906356666666667 0.0 0.871907 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.121377 0.812807 7.5767 Root 0.2545 0.0 0.577285