condition mean min max Sterile Frond 0.30508833333333335 0.0 0.915265 Fertile Frond 0.153805 0.0 0.461415 Young Stem with Root 2.710474 0.0 7.70092 Mature Stem with Root 4.819836333333333 0.0 13.9719 Root 0.409713 0.0 0.811427