condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.88244 0.0 5.64732 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.09386299999999999 0.0 0.281589 Root 0.0 0.0 0.0