condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.1920699999999997 0.0 6.57621 Young Stem with Root 0.119589 0.0 0.358767 Mature Stem with Root 0.42961333333333335 0.0 1.28884 Root 0.0 0.0 0.0