condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 3.708293333333333 2.72335 4.8267 Young Stem with Root 0.172793 0.0 0.327769 Mature Stem with Root 0.19492333333333334 0.0 0.382764 Root 0.0 0.0 0.0