condition mean min max Sterile Frond 21.75012 3.22542 55.5039 Fertile Frond 6.44031 3.6851 8.89662 Young Stem with Root 6.319914333333333 0.0 18.4679 Mature Stem with Root 2.265618 0.248504 3.76209 Root 12.8979 5.40285 25.0162