condition mean min max Sterile Frond 2.47745 1.04375 3.57085 Fertile Frond 3.136163333333333 1.68493 4.76938 Young Stem with Root 3.181706666666667 2.86378 3.39331 Mature Stem with Root 2.97623 2.12366 3.43239 Root 2.51247 2.24141 2.79641