condition mean min max Sterile Frond 2.147751 0.0 5.89544 Fertile Frond 0.36521000000000003 0.0 1.09563 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0