condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 4.737266666666667 0.0 14.2118 Mature Stem with Root 0.0 0.0 0.0 Root 4.458456666666667 0.0 9.61752