condition mean min max Sterile Frond 2.150843 0.837005 4.66101 Fertile Frond 2.49131 1.07009 4.59903 Young Stem with Root 1.431705 0.221715 2.12224 Mature Stem with Root 3.447791666666667 0.666205 8.11594 Root 0.858253 0.420489 1.08488