condition mean min max Sterile Frond 0.3465051 0.0999443 0.490728 Fertile Frond 1.6100210000000001 0.234053 2.67884 Young Stem with Root 5.381066666666666 0.0 16.1432 Mature Stem with Root 0.8570206666666667 0.41949 1.2582 Root 4.010779 0.0 11.7453