condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.1859933333333332 0.46805 4.26093 Young Stem with Root 13.788602666666666 0.111208 21.6084 Mature Stem with Root 0.926232 0.214902 2.08326 Root 0.0973339 0.0322729 0.183138