condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 6.578230966666667 0.0166629 13.496 Mature Stem with Root 0.570896 0.0 1.45821 Root 1.3776760000000001 0.160648 2.03011