condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 3.2527516666666667 0.198635 8.37165 Young Stem with Root 4.589411999999999 0.168096 11.8722 Mature Stem with Root 1.1848800000000002 0.0 2.04036 Root 0.055846 0.0 0.167538