condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.1459066666666664 0.0 6.43772 Young Stem with Root 0.249344 0.0 0.748032 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0