condition mean min max Sterile Frond 0.8275100000000001 0.0 2.48253 Fertile Frond 2.150106666666667 0.0 4.79549 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 27.602206666666667 0.0 80.7746 Root 1.46157 0.0 4.38471