condition mean min max Sterile Frond 4.733702 0.251986 10.1776 Fertile Frond 2.87505 2.32918 3.5152 Young Stem with Root 1.736285 0.257939 4.07634 Mature Stem with Root 3.537087666666667 0.533432 9.12974 Root 0.5947473333333333 0.0 1.29423