condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 5.1069 0.0 15.3207 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.12210433333333333 0.0 0.366313 Root 1.057962 0.0 2.32689