condition mean min max Sterile Frond 9.2288 0.0 27.6864 Fertile Frond 9.851799999999999 0.0 29.5554 Young Stem with Root 3.2460833333333334 0.0 9.73825 Mature Stem with Root 7.345666666666666 0.0 22.037 Root 4.4286 0.0 13.2858