condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 4.126233333333333 0.0 12.3787 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.42961333333333335 0.0 1.28884 Root 0.0 0.0 0.0