condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.4982600000000001 0.0 2.94769 Young Stem with Root 6.172499999999999 0.0 18.5175 Mature Stem with Root 0.7587093333333333 0.407319 1.34946 Root 6.41467 1.7759 14.2713