condition mean min max Sterile Frond 0.36840566666666663 0.0 0.696684 Fertile Frond 4.645946666666667 0.0 11.0652 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