condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.08227866666666667 0.0 0.246836 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.079228 0.0 0.237684 Root 3.8119 0.0 11.4357