condition mean min max Sterile Frond 12.28115 8.98715 14.7684 Fertile Frond 18.9754 15.7527 22.0406 Young Stem with Root 18.307033333333333 16.0275 19.9886 Mature Stem with Root 19.2337 14.9378 25.4692 Root 24.0174 10.9123 36.5945