condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.049436666666667 0.0 6.14831 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.39920666666666665 0.0 1.19762 Root 0.6793469999999999 0.0 1.06259