condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.5337996 0.0822688 5.89451 Young Stem with Root 0.687465 0.114887 1.51262 Mature Stem with Root 7.478509 0.146571 21.4729 Root 12.549903333333333 5.27697 25.865