condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.7438853333333333 0.234795 1.6713 Young Stem with Root 3.3435142 0.0278926 5.28259 Mature Stem with Root 0.17525733333333332 0.0 0.417977 Root 0.265545 0.209983 0.356131