condition mean min max Sterile Frond 0.0149742 0.0 0.0449226 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.3974682 0.0579696 0.672519 Root 2.7831546666666664 0.0 7.4638