condition mean min max Sterile Frond 2.435069 0.252553 6.71906 Fertile Frond 4.335455 0.219895 12.3873 Young Stem with Root 1.7378586666666667 0.388042 4.2081 Mature Stem with Root 1.2656640000000001 0.222448 3.18746 Root 0.76042 0.0 2.28126