condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 8.496267333333334 0.383762 21.3504 Root 1.01922 0.0 2.28086