condition mean min max Sterile Frond 0.04945366666666667 0.0 0.148361 Fertile Frond 0.252816 0.0 0.610792 Young Stem with Root 0.32033 0.0 0.96099 Mature Stem with Root 0.17976833333333334 0.0 0.539305 Root 2.901106 0.0 7.825