condition mean min max Sterile Frond 5.951303333333334 0.0 14.8514 Fertile Frond 1.0320406666666666 0.0 2.62665 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0