condition mean min max Sterile Frond 1.35423 0.0 2.80191 Fertile Frond 2.4565 0.53475 4.90591 Young Stem with Root 3.5396843333333337 0.168823 8.62808 Mature Stem with Root 5.790192 0.263676 15.3713 Root 11.344077666666667 0.891823 28.7444