condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 13.143490666666667 0.383642 36.0831 Root 9.742604666666667 0.0 28.8221