condition mean min max Sterile Frond 1.46414 0.0 2.35403 Fertile Frond 23.496666666666666 0.0 58.5833 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.53942 0.0 6.10868 Root 0.0 0.0 0.0