condition mean min max Sterile Frond 2.95917 2.46792 3.71253 Fertile Frond 2.49301 2.27768 2.87383 Young Stem with Root 2.426753333333333 2.02635 2.9574 Mature Stem with Root 2.51788 2.32231 2.76515 Root 2.189942333333333 0.984957 2.92588