condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.9951533333333332 0.0 2.98546 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 4.246499999999999 2.24117 6.32945 Root 1.01887 0.0 2.01361