condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 8.85396 1.73896 15.6358 Young Stem with Root 19.637620000000002 3.23566 35.1086 Mature Stem with Root 0.747327 0.0 1.4457 Root 10.70906 1.9681 26.7684