condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.08208066666666666 0.0 0.246242 Mature Stem with Root 0.09972500000000001 0.0 0.299175 Root 6.2772 0.0 17.3676