condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 8.633903 0.145599 20.0745 Root 0.7340986666666667 0.0 1.63174