condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.18042 0.0 0.437303 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 7.565848466666666 0.0982774 22.11 Root 0.5514733333333334 0.0 1.38684