condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 3.18497 0.0 9.55491 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.22045099999999998 0.0 0.661353