condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.10884366666666667 0.0 0.326531 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.97242 0.0 8.23076 Root 0.298332 0.0 0.894996