condition mean min max Sterile Frond 0.2019867 0.0690821 0.417089 Fertile Frond 0.3234986666666667 0.148697 0.617473 Young Stem with Root 4.4589 0.0 13.3767 Mature Stem with Root 0.75927 0.1245 1.10268 Root 3.303975 0.149475 7.27003