condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.3452466666666667 0.0 1.03574 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.9598733333333334 2.17458 4.10436 Root 0.61058 0.0 0.942593