condition mean min max Sterile Frond 1.2605233333333332 0.0 3.78157 Fertile Frond 3.095613 0.0 8.86452 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